What is the sine of 60 degrees

When we are working with a 60-degree angle, we use the left-hand triangle above, at it stands, with the base angle ... 60° sin. 1. 2. 3. cos. 3. 2. 1 . divided by 2. To find, say, the sine of an angle measuring forty-five degrees, you would trace across in the "sin" row and down the "45 ...

What is the sine of 60 degrees. sin 35° = 0.57358. sin 35 degrees = 0.57358. The sin of 35 degrees is 0.57358, the same as sin of 35 degrees in radians. To obtain 35 degrees in radian multiply 35° by π / 180° = 7/36 π. Sin 35degrees = sin (7/36 × π). Our results of sin35° have been rounded to five decimal places. If you want sine 35° with higher accuracy, then use ...

Trigonometry. Find the Exact Value sin (240 degrees ) sin(240°) sin ( 240 °) Apply the reference angle by finding the angle with equivalent trig values in the first quadrant. Make the expression negative because sine is negative in the third quadrant. −sin(60) - sin ( 60)

The 30-60-90 and 45-45-90 triangles are used to help remember trig functions of certain commonly used angles. For a 30-60-90 triangle, draw a right triangle whose other two angles are approximately 30 degrees and 60 degrees. The sides are 1, 2 and the square root of 3. The smallest side (1) is opposite the smallest angle (30 degrees).Trigonometry Examples. Popular Problems. Trigonometry. Find the Exact Value cos(60 degrees ) Step 1. The exact value of is . Step 2. The result can be shown in ...So one way to think about it, the sine of-- we could just pick any arbitrary angle-- let's say, the sine of 60 degrees is going to be equal to the cosine of what? And I encourage you to pause the video and think about it. Well, it's going to be the cosine of 90 minus 60. It's going to be the cosine of 30 degrees. 30 plus 60 is 90.Mar 17, 2013 ... This video teaches how to evaluate the trigonometric functions (sine, cosine and tangent) at the 30,45, and 60 degrees.Free math problem solver answers your algebra, geometry, trigonometry, calculus, and statistics homework questions with step-by-step explanations, just like a math tutor.Pythagoras. Pythagoras' Theorem says that for a right angled triangle, the square of the long side equals the sum of the squares of the other two sides:. x 2 + y 2 = 1 2. But 1 2 is just 1, so:. x 2 + y 2 = 1 equation of the unit circle. Also, since x=cos and y=sin, we get: (cos(θ)) 2 + (sin(θ)) 2 = 1 a useful "identity" Important Angles: 30°, 45° and 60°. You …Feb 17, 2017 · cos 60° = 0.5. cos 60 degrees = 0.5. The cos of 60 degrees is 0.5, the same as cos of 60 degrees in radians. To obtain 60 degrees in radian multiply 60° by π / 180° = 1/3 π. Cos 60degrees = cos (1/3 × π). Our results of cos60° have been rounded to five decimal places. If you want cosine 60° with higher accuracy, then use the calculator ...

Arcsine Calculator. The arcsine function, denoted as "arcsin" or "sin -1 (x)" (sometimes written as "asin (x)"), is the inverse of the sine function "sin (x)". Its domain is all real numbers, and its range is between -π/2 to π/2, which corresponds to the interval [-1, 1]. It is represented as -. y = sin -1 (x) The arcsin function takes a ...Trigonometry Examples. Popular Problems. Trigonometry. Evaluate sin(60 degrees ) Step 1. The exact value of is . Step 2. The result can be shown in multiple forms ...Online degree programs are becoming increasingly popular for those looking to further their education without having to attend a traditional college or university. With so many onl...Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history ...Answer: sin (360°) = 0. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 360 degrees - sin (360 °) - or the sine of any angle in degrees and in radians.Arcsine is an inverse of the sine function. In other words, it helps to find the angle of a triangle that has a known value of sine: arcsin (x) = y iff x = sin (y) As sine's codomain for real numbers is [−1, 1] , we can only calculate arcsine for numbers in that interval. This means that the domain of arcsin (for real results) is -1 ≤ x ≤ 1.Answer: sin (160°) = 0.3420201433. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 160 degrees - sin (160 °) - or the sine of any angle in degrees and in radians.

The sine graph or sinusoidal graph is an up-down graph and repeats every 360 degrees i.e. at 2π. In the below-given diagram, it can be seen that from 0, the sine graph rises till +1 and then falls back till -1 from where it rises again. The function y = sin x is an odd function, because; sin (-x) = -sin x.Defining Sine and Cosine Functions from the Unit Circle. ... At t = π 3 t = π 3 (60°), the (x, y) (x, y) coordinates for the point on a circle of radius 1 1 at an angle of 60 ... We can find the cosine or sine of an angle in degrees directly on a calculator with degree mode.Explanation: For sin 16 degrees, the angle 16° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 16° value = 0.2756373. . . Since the sine function is a periodic function, we can represent sin 16° as, sin 16 degrees = sin (16° + n × 360°), n ∈ Z. ⇒ sin 16° = sin 376° = sin ...Exercise. Try this paper-based exercise where you can calculate the sine functionfor all angles from 0° to 360°, and then graph the result. It will help you to understand these relativelysimple functions. You can also see Graphs of Sine, Cosine and Tangent.. And play with a spring that makes a sine wave.. Less Common Functions. To complete the …

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Dec 21, 2015 ... Check out - www.risingpearl.com Like at - www.facebook.com/risingpearlfans Hi Friends, This is the nineth webisode of this series where we ...May 4, 2023 ... In fractional form, its exact value of cos 60 degree is 12. Cos 60 Degrees in Radians. Cos 60 degree in radians is represented as. = (60 ...👉 Learn how to evaluate trigonometric functions using the special right triangles. A right triangle is a triangle with 90 degrees as one of its angles. A sp...Sine, Cosine and Tangent. Sine, Cosine and Tangent (often shortened to sin, cos and tan) are each a ratio of sides of a right angled triangle: For a given angle θ each ratio stays the same no matter how big or small the triangle is. To calculate them: Divide the length of one side by another sideThe exact value of sine of angle sixty degrees in fraction form is the quotient of square root of three by two, and it is written in below mathematical form in trigonometry. sin. ⁡. ( 60 °) = 3 2. The value of sine sixty degrees is an irrational number and its value is written in decimal form as follows. sin.

The sine graph or sinusoidal graph is an up-down graph and repeats every 360 degrees i.e. at 2π. In the below-given diagram, it can be seen that from 0, the sine graph rises till +1 and then falls back till -1 from where it rises again. The function y = sin x is an odd function, because; sin (-x) = -sin x.Answer: sin (360°) = 0. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 360 degrees - sin (360 °) - or the sine of any angle in degrees and in radians.Sin 60 Degrees. Before we dive into the calculations and methods, let’s start with the basics. Sin 60 degrees is the value of the sine function at an angle of 60 degrees in a right triangle. It represents the ratio of the length of the side opposite the 60-degree angle to the length of the hypotenuse (the longest side) in the triangle.Get the values of the trigonometric ratios of angles measured in degrees, minutes and seconds. Get the values for sine, cosine, tangent, cosecant, cotangent, and secant. Sine = sin Cosine = cos Tangent = tan Cosecant = csc Secant = sec Cotangent = cot. Trig Functions Ratio's from Angles in Degrees.2 days ago · 270° to 360° — fourth quadrant. In this case, 250° lies in the third quadrant. Choose the proper formula for calculating the reference angle: 0° to 90°: reference angle = angle, 90° to 180°: reference angle = 180° − angle, 180° to 270°: reference angle = angle − 180°, 270° to 360°: reference angle = 360° − angle. The only difference is that there, they are reversed. Therefore, we obtain our first alternative cosecant formula: \csc x = \sin^ {-1} {x} cscx = sin−1 x. Or, if you prefer fractions, \csc (x) = 1 / \sin (x) csc(x) = 1/sin(x) However, note that this does not mean that csc x is the inverse function of sin x. That would be arcsin, which takes ...Solution. Step 1. Use the Sine Rule to find the missing angle opposite to one of the known sides. Here, we know the sides \hspace {0.2em} b \hspace {0.2em} b and \hspace {0.2em} c \hspace {0.2em} c and the angle B B. So we need to find angle C C.Revise trigonometric ratios of sine, cosine and tangent and calculate angles in right-angled triangles with this Bitesize GCSE Maths Edexcel guide.sin ⁡ (45 °) = 2 / 2 \sin(45\degree) = \sqrt{2}/2 sin (45°) = 2 /2. Other interesting angles are 30 ° 30\degree 30° and 60 ° 60\degree 60°, as they appear in other special right triangles. For these angles, we have the sine of 30 and the sine of 60 degrees. sin ⁡ (30 °) = 1 / 2 \sin(30\degree) = 1/2 sin (30°) = 1/2The calculator instantly tells you that sin (45°) = 0.70710678. It also gives the values of other trig functions, such as cos (45°) and tan (45°). First, select what parameters are known about the triangle. You can choose between " two sides ", " an angle and one side ", and " area and one side ".Question: Part C- Find the phasor transform of a sinusoidal source defined using the sine function What is the phasor transform of a current source described as i (t) 300sin (500t +60) mA? Express your answer as a complex number in polar form. The phase angle will be considered to be in degrees. Express your answer using three significant figures.

Explanation: For sin 240 degrees, the angle 240° lies between 180° and 270° (Third Quadrant ). Since sine function is negative in the third quadrant, thus sin 240° value = - (√3/2) or -0.8660254. . . Since the sine function is a periodic function, we can represent sin 240° as, sin 240 degrees = sin (240° + n × 360°), n ∈ Z.

Explanation: For sin 120 degrees, the angle 120° lies between 90° and 180° (Second Quadrant ). Since sine function is positive in the second quadrant, thus sin 120° value = √3/2 or 0.8660254. . . ⇒ sin 120° = sin 480° = sin 840°, and so on. Note: Since, sine is an odd function, the value of sin (-120°) = -sin (120°).Compute answers using Wolfram's breakthrough technology & knowledgebase, relied on by millions of students & professionals. For math, science, nutrition, history ...Answer: sin (160°) = 0.3420201433. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 160 degrees - sin (160 °) - or the sine of any angle in degrees and in radians.What is the exact value of sin 60° ? Enter your answer, as a simplified fraction. Summary: The exact value of sin60° as a simplified fraction is √3 /2.sin-60°. = cos (90° + 60°) = cos 150°. = sin (180° + 60°) = sin 240°. -sin-60°. = cos (90° – 60°) = cos 30°. = sin (180° – 60°) = sin 120°. Note that sin-60° is periodic: sin (-60° + n …The table shows Sin[] and Cos[] in surds, for angles that are integer multiples of 3° or of 5⅝° = 90°/16. The surds are shown in several formats.Use this simple sine calculator to calculate the sine value for 60° in radians / degrees. The Trignometric Table of sin, cos, tan, cosec, sec, cot is useful to learn the common angles of trigonometrical ratios from 0° to 360°. Select degrees or radians in the drop down box and calculate the exact sine 60° value easily. α sin (α)3 days ago · The calculator instantly tells you that sin (45°) = 0.70710678. It also gives the values of other trig functions, such as cos (45°) and tan (45°). First, select what parameters are known about the triangle. You can choose between " two sides ", " an angle and one side ", and " area and one side ".

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Set a sine bar angle or sine plate angle with this calculator. Enter the desired angle and sine bar size. The calculator will provide the gage block height. 0 Comments.sin stands for sine.cos stands for cosine. cosine is the co-function of sine, which is why it is called that way (there's a 'co' written in front of 'sine').Co-functions have the relationship sin@ = cos(90-@) However, the trig function csc stands for cosecant which is completely different from cosine.As you might have noticed, cosecant has a 'co' written in front of …Hence, we get the values for sine ratios,i.e., 0, ½, 1/√2, √3/2, and 1 for angles 0°, 30°, 45°, 60° and 90° Now, write the values of sine degrees in reverse order to get the values of cosine for the same angles. As we know, tan is the …The important angles of trigonometry are 0°, 30°, 45°, 60°, 90°. These are the standard angles of trigonometric ratios, such as sin, cos, tan, sec, cosec, and cot. Each of these angles has different values with different trig functions. Table of Contents: The two rays that have the same beginning point that forms the figure called an angle.The important angles of trigonometry are 0°, 30°, 45°, 60°, 90°. These are the standard angles of trigonometric ratios, such as sin, cos, tan, sec, cosec, and cot. Each of these angles has different values with different trig functions. Table of Contents: The two rays that have the same beginning point that forms the figure called an angle.Apr 16, 2024 · For memorising cos 0°, cos 30°, cos 45°, cos 60° and cos 90°. Cos is the opposite of sin. We should learn it like. cos 0° = sin 90° = 1. cos 30° = sin 60° = √3/2. cos 45° = sin 45° = 1/√2. cos 60° = sin 30° = 1/2. cos 90° = sin 0° = 0. So, for cos, it will be like. Ans: The value of cos (60°) and sin (30°) is the same, 1/2.The triangle shown is an equilateral triangle. An equilateral triangle has sides lengths a. What is the area of the equilateral triangle with the length of each side equal to a? One-half a sine (60 degrees) 3 a sine (60 degrees) One-half a squared sine (60 degrees) a squared sine (60 degrees)Are you in need of your degree certificate download? Whether you are a recent graduate or someone who misplaced their physical copy, obtaining your degree certificate online has ne... Explanation: For sin 120 degrees, the angle 120° lies between 90° and 180° (Second Quadrant ). Since sine function is positive in the second quadrant, thus sin 120° value = √3/2 or 0.8660254. . . ⇒ sin 120° = sin 480° = sin 840°, and so on. Note: Since, sine is an odd function, the value of sin (-120°) = -sin (120°). ….

Online degrees are gaining traction as equivalent options to physical classes. Learn if employers take online degrees seriously at HowStuffWorks. Advertisement So, you're almost re...Apr 16, 2024 · For memorising cos 0°, cos 30°, cos 45°, cos 60° and cos 90°. Cos is the opposite of sin. We should learn it like. cos 0° = sin 90° = 1. cos 30° = sin 60° = √3/2. cos 45° = sin 45° = 1/√2. cos 60° = sin 30° = 1/2. cos 90° = sin 0° = 0. So, for cos, it will be like. Apr 10, 2020 ... Comments2 ; Find the SIN (60 degrees) Without a CALCULATOR. TabletClass Math · 42K views ; The Exact Values for Sine, Cosine, and Tangent of 45 ...Sin 90o= 1. We can simply memorize the trigonometric ratios of cosine by writing the values of sine from bottom to top, i.e., PROBLEM – 1: Sin 60 o Cos30 o + Sin30 o Cos60 o. …Since sine is positive in the first and second quadrants, we can find the angle in the second quadrant that has the same sine as 60 degrees. To do this, we subtract 60 degrees from 180 degrees: $\theta_1 = 180^\circ - 60^\circ = 120^\circ$ So, the angle θ with the same sine as 60 degrees is $\boxed{120^\circ}$. Answer Next, we need to find an ... The value of sine sixty degrees is an irrational number and its value is written in decimal form as follows. sin. ⁡. ( 60 °) = 0.8660254037 ⋯. sin. ⁡. ( 60 °) ≈ 0.866. In mathematics, the sine of angle sixty degrees can also be written in two other forms. The angles are calculated with respect to sin, cos and tan functions. Usually, the degrees are considered as 0°, 30°, 45°, 60°, 90°, 180°, 270° and 360°. Here, we will discuss the value for sin 30 degrees and how to derive the sin 30 value using other degrees or radians. Sine 30 Degrees Value. The exact value of sin 30 degrees is ½. Explanation: For sin 5 degrees, the angle 5° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 5° value = 0.0871557. . . Since the sine function is a periodic function, we can represent sin 5° as, sin 5 degrees = sin (5° + n × 360°), n ∈ Z. ⇒ sin 5° = sin 365° = sin 725 ...Chart with the sine, cosine, tangent value for each degree in the first quadrantSince sine is positive in the first and second quadrants, we can find the angle in the second quadrant that has the same sine as 60 degrees. To do this, we subtract 60 degrees from 180 degrees: $\theta_1 = 180^\circ - 60^\circ = 120^\circ$ So, the angle θ with the same sine as 60 degrees is $\boxed{120^\circ}$. Answer Next, we need to find an ... What is the sine of 60 degrees, Sin 90o= 1. We can simply memorize the trigonometric ratios of cosine by writing the values of sine from bottom to top, i.e., PROBLEM – 1: Sin 60 o Cos30 o + Sin30 o Cos60 o. …, Dec 21, 2015 ... Check out - www.risingpearl.com Like at - www.facebook.com/risingpearlfans Hi Friends, This is the nineth webisode of this series where we ..., sin75∘ = sin 5π 12 = 6–√ + 2–√ 4 sin. ⁡. 75 ∘ = sin. ⁡. 5 π 12 = 6 + 2 4. where sin sin denotes the sine function ., Exact values of sin(60), cos(60), tan(60), csc(60), sec(60), cot(60), Find exact values of all trigonometric functions when the angle is 60 degrees,Check out..., The sine graph or sinusoidal graph is an up-down graph and repeats every 360 degrees i.e. at 2π. In the below-given diagram, it can be seen that from 0, the sine graph rises till +1 and then falls back till -1 from where it rises again. The function y = sin x is an odd function, because; sin (-x) = -sin x., Answer: sin (60°) = 0.8660254038. sin (60°) is exactly: √3/2. Note: angle unit is set to degrees. Use our sin (x) calculator to find the exact value of sine of 60 degrees - sin (60 °) - or the sine of any angle in degrees and in radians., The cosine of 63 degrees is not actually 0.45; however, the student is seeking the sine of 27 degrees. To answer this, we leverage the co-function identity which states that the sine of an angle is equal to the cosine of its complement. Therefore, the sine of 27 degrees is equal to the cosine of (90 - 27) degrees, which is the cosine of 63 degrees., To find the value of sin 600 degrees using the unit circle, represent 600° in the form (1 × 360°) + 240° [∵ 600°>360°] ∵ sine is a periodic function, sin 600° = sin 240°. Rotate ‘r’ anticlockwise to form a 240° or 600° angle with the positive x-axis., Tangent function ( tan (x) ) The tangent is a trigonometric function, defined as the ratio of the length of the side opposite to the angle to the length of the adjacent side, in a right-angled triangle. It is called "tangent" since it can be represented as a line segment tangent to a circle. In the graph above, tan (α) = a/b and tan (β) = b/a., sin 30° = 0.5. sin 30 degrees = 0.5. The sin of 30 degrees is 0.5, the same as sin of 30 degrees in radians. To obtain 30 degrees in radian multiply 30° by π / 180° = 1/6 π. Sin 30degrees = sin (1/6 × π). Our results of sin30° have been rounded to five decimal places. If you want sine 30° with higher accuracy, then use the calculator ..., Since sine is positive in the first and second quadrants, we can find the angle in the second quadrant that has the same sine as 60 degrees. To do this, we subtract 60 degrees from 180 degrees: $\theta_1 = 180^\circ - 60^\circ = 120^\circ$ So, the angle θ with the same sine as 60 degrees is $\boxed{120^\circ}$. Answer Next, we need to find an ..., Therefore, Sin 30 degree equals to the fractional value of 1/ 2. Sin 30° = 1 / 2. Therefore, sin 30 value is 1/2. In the same way, we can derive other values of sin degrees like 0°, 30°, 45°, 60°, 90°,180°, 270° and 360°. Below is the trigonometry table, which defines all the values of sine along with other trigonometric ratios., Graduation season is upon us—and that means approximately 700,000 U.S. students will be receiving master's degrees and another 150,000 or so will be getting their doctorates. For s..., Sep 26, 2010 ... Tutorial on trigonometric ratios for positive multiples of 30, 45 and 60 degrees YOUTUBE CHANNEL at https://www.youtube.com/ExamSolutions ..., The exact value of sin(60°) sin ( 60 °) is √3 2 3 2. √3 2 3 2. The result can be shown in multiple forms. Exact Form: √3 2 3 2. Decimal Form: 0.86602540… 0.86602540 … Free …, From the above equations, we get sin 60 degrees exact value as √3/2. In the same way, we can find the values for cos and tan ratios. Therefore, the exact value of sin 60 degrees is √3/2 , Snell's Law states that the ratio of sine of angle of incidence and sine of angle of refraction is always constant for a given pair of media ... (60^\circ\), refracts at an angle of \(45^\circ\). ... What is the maximum entering angle in degrees a light ray can pass from the air to the glass fiber for the total internal reflection to ..., The angles are calculated with respect to sin, cos and tan functions. Usually, the degrees are considered as 0°, 30°, 45°, 60°, 90°, 180°, 270° and 360°. Here, we will discuss the value for sin 30 degrees and how to derive the sin 30 value using other degrees or radians. Sine 30 Degrees Value. The exact value of sin 30 degrees is ½., Dec 16, 2020 ... This video works to determine the exact value of the sine of 24 degrees. It uses the difference formula for sine and employs two values of ..., Make the expression negative because sine is negative in the fourth quadrant. Step 2. The exact value of is . Step 3. The result can be shown in multiple forms. Exact ..., Apr 16, 2024 · For memorising cos 0°, cos 30°, cos 45°, cos 60° and cos 90°. Cos is the opposite of sin. We should learn it like. cos 0° = sin 90° = 1. cos 30° = sin 60° = √3/2. cos 45° = sin 45° = 1/√2. cos 60° = sin 30° = 1/2. cos 90° = sin 0° = 0. So, for cos, it will be like. , Feb 26, 2017 · sin 60° = √ (3)/2. sin 60 degrees = √ (3)/2. The sin of 60 degrees is √ (3)/2, the same as sin of 60 degrees in radians. To obtain 60 degrees in radian multiply 60° by π / 180° = 1/3 π. Sin 60degrees = sin (1/3 × π). Our results of sin60° have been rounded to five decimal places. If you want sine 60° with higher accuracy, then ... , The area of an equilateral triangle can be written as a squared sine (60 degrees).Option D is correct. What is an equilateral triangle? The triangle in which all three sides are of the same length.In this the all angles are the same 60°.. The area of a triangle can be calculated by,.....1. Where, A - Area of triangle . b - base, Answer: sin (10°) = 0.1736481777. Note: angle unit is set to degrees. Use our sin (x) calculator to find the sine of 10 degrees - sin (10 °) - or the sine of any angle in degrees and in radians. , sin 30° = 0.5. sin 30 degrees = 0.5. The sin of 30 degrees is 0.5, the same as sin of 30 degrees in radians. To obtain 30 degrees in radian multiply 30° by π / 180° = 1/6 π. Sin 30degrees = sin (1/6 × π). Our results of sin30° have been rounded to five decimal places. If you want sine 30° with higher accuracy, then use the calculator ..., Explanation: For sin 35 degrees, the angle 35° lies between 0° and 90° (First Quadrant ). Since sine function is positive in the first quadrant, thus sin 35° value = 0.5735764. . . ⇒ sin 35° = sin 395° = sin 755°, and so on. Note: Since, sine is an odd function, the value of sin (-35°) = -sin (35°)., Ans: The value of cos (60°) and sin (30°) is the same, 1/2., Answer: Sine 60°= √3/2 =1.732/2. 0.8660. Step-by-step explanation: In mathematics, the sine is a trigonometric function of an angle. The sine of an acute angle is defined in the context of a right triangle: for the specified angle, it is the ratio of the length of the side that is opposite that angle to the length of the longest side of the triangle (the …, Hence, we get the values for sine ratios,i.e., 0, ½, 1/√2, √3/2, and 1 for angles 0°, 30°, 45°, 60° and 90° Now, write the values of sine degrees in reverse order to get the values of cosine for the same angles. As we know, tan is the …, Learn how to find the sine, cosine, and tangent of angles in right triangles. The ratios of the sides of a right triangle are called trigonometric ratios. Three common trigonometric ratios are the sine (sin), cosine (cos), and tangent (tan). These are defined for acute angle A below: In these definitions, the terms opposite, adjacent, and ..., Tangent function ( tan (x) ) The tangent is a trigonometric function, defined as the ratio of the length of the side opposite to the angle to the length of the adjacent side, in a right-angled triangle. It is called "tangent" since it can be represented as a line segment tangent to a circle. In the graph above, tan (α) = a/b and tan (β) = b/a., sin ⁡ (45 °) = 2 / 2 \sin(45\degree) = \sqrt{2}/2 sin (45°) = 2 /2. Other interesting angles are 30 ° 30\degree 30° and 60 ° 60\degree 60°, as they appear in …, The 30-60-90 and 45-45-90 triangles are used to help remember trig functions of certain commonly used angles. For a 30-60-90 triangle, draw a right triangle whose other two angles are approximately 30 degrees and 60 degrees. The sides are 1, 2 and the square root of 3. The smallest side (1) is opposite the smallest angle (30 degrees).