Finding Angles of a Right Triangle Using Trig Ratios

Find the measure of the indicated angle (?) round to the nearest tenth.

• 9.4

• 55.2

• 20.15

• 19.4

Find the measure of the indicated angle (?) round to the nearest tenth.

• 33°

• 49°

• 39°

• 41°

Find the measure of the angle.  Round to the nearest tenth. 

• 30.8

• 32.1

• 34.3

• 36.9

If I want to find an angle of a right-angle triangle using the trig ratios, what information do I need to have?

• two sides and an angle.

• a side and an angle.

• two sides.

• two angles.

Solve for the missing angle

• 50

• 0.053

• 36.9

• 95

Which equation would you use to solve for the unknown angle?

• x = tan^–1(24/7)

• x = tan^–1(7/24)

• x = tan^–1(25/7)

• x = tan^–1(7/25)

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

Set up the problem...

• sin X = 41/28

• tan X = 41/28

• cos X = 28/41

• sin X = 28/41

Find the measure of the indicated angle.

• 9.39

• 55.2

• 20.2

• 19.4

Solve for the missing angle

• 50.2

• 93.1

• 12.6

• 42.2