Solving For Angle Measures Of Right Triangles

Which equation can be used to find the measure of angle GFE? cos−1 = θ cos−1 = θ sin−1 = θ sin−1 = θ

The length of the hypotenuse, line segment GH, in triangle GJH measures 6 cm. Line segment JH measures 2 cm. Which is the approximate measure of angle JGH? 18.4° 19.5° 70.5° 71.6°

What is the approximate value of y − x? 4.9° 6.2° 11.1° 17.2°

Which equation can be used to find the measure of angle BAC? tan−1 = x tan−1 = x cos−1 = x cos−1 = x

Larissa dives into a pool that is 8 feet deep. She touches the bottom of the pool with her hands 6 feet horizontally from the point at which she entered the water. What is the approximate angle of elevation from the point on the bottom of the pool where she touched to her entry point? 36.9° 41.4° 48.6° 53.1°

In which triangle is the value of x equal to cos−1? (Images may not be drawn to scale.)

Which equation can be used to find the measure of angle FGE? sin(x) = sin(x) = cos(x) = cos(x) =

The measure of angle BAC can be calculated using the equation sin−1 = x. What is the measure of angle BAC? Round to the nearest whole degree.

Which expressions can be used to find m∠BAC? Check all that apply. cos−1 cos−1 sin−1 sin−1 tan−1 tan−1

Which equation can be used to solve for the measure of angle ABC? tan(x) = tan(x) = sin(x) = sin(x) =