Inverse Trig Functions to Solve for Angles

Which inverse trig function would you use to find the measure of Angle A?

• inverse sine

• inverse cosine

• inverse tangent

• It is not possible to determine m<A

Use inverse trig ratios (SOH CAH TOA) to solve for the missing angle

• 33°

• 49°

• 39°

• 41°

Sam views a deer from a height of 45 feet. The horizontal distance between the tourist and the deer is 130 feet. At what angle (x) should the tourist hold his camera to photograph the deer? Round your answer to the nearest degree.

• 19^o

• 45^o

• 71^o

• 138^o

Which expression is correct for "y"?

• y = tan^–1(31/23)

• y = sin^–1(31/23)

• y = cos^–1(31/23)

• cos^-1

• sin^-1

• tan

• tan^-1

• sin

• cos^-1

• tan^-1

• tan

• sin^-1

• sin

Choose the correct ratio.

• sin^-1(12/29)

• cos^-1(12/29)

• tan^-1(12/29)

• tan^-1(29/12)

• cos^-1

• tan^-1

• tan

• cos

• sin

• cos

• sin^-1

• tan

• tan^-1

• cos^-1

• cos^-1

• sin^-1

• tan

• tan^-1

• sin