Finding Missing Angles in Right Triangles

The video tutorial explains how to use trigonometric functions to find missing angles in right triangles. It covers the use of sine, cosine, and tangent functions, along with their inverse functions, to calculate angles. The tutorial provides step-by-step examples using a calculator to demonstrate the process of finding angles when given the lengths of sides in a right triangle.

What is the Greek letter used to represent the measure of an angle?

• Alpha

• Beta

• Theta

• Gamma

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CCSS.4.MD.C.5B

CCSS.HSG.CO.A.1

Which trigonometric function is used when you have the opposite side and the hypotenuse?

• Secant

• Cosine

• Tangent

• Sine

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CCSS.HSG.SRT.C.6

What is the inverse function of sine called?

• Sine squared

• Inverse sine

• Sine reciprocal

• Sine root

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CCSS.HSF-BF.B.4A

If the opposite side is 8 and the hypotenuse is 16, what is the angle measure?

• 60 degrees

• 90 degrees

• 45 degrees

• 30 degrees

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CCSS.HSG.SRT.C.8

Which trigonometric function is used when you have the adjacent side and the hypotenuse?

• Tangent

• Sine

• Cosine

• Cotangent

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CCSS.HSG.SRT.C.6

What is the angle measure if the adjacent side is 7.4 and the hypotenuse is 9.7?

• 50.3 degrees

• 60.3 degrees

• 40.3 degrees

• 30.3 degrees

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CCSS.HSG.SRT.C.8

Which trigonometric function is used when you have the opposite side and the adjacent side?

• Secant

• Cosine

• Sine

• Tangent

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CCSS.HSG.SRT.C.6

What is the angle measure if the opposite side is 6 and the adjacent side is 11?

• 38.6 degrees

• 48.6 degrees

• 28.6 degrees

• 18.6 degrees

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CCSS.HSG.SRT.C.8

What does the little negative 1 symbol indicate in trigonometric functions?

• Exponent

• Inverse function

• Reciprocal

• Square root

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CCSS.HSF-BF.B.4A

What is the approximate angle measure for the inverse tangent of 6/11?

• 18.6 degrees

• 28.6 degrees

• 48.6 degrees

• 38.6 degrees

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CCSS.HSG.SRT.C.8