Trigonometry (Inverse Functions and Missing Angles)

Choose the correct set-up to solve for  $m\angle A$ .

•  $m\angle A=\sin^{-1}\left(\frac{18}{30}\right)$  

•  $m\angle A=\tan^{-1}\left(\frac{18}{30}\right)$  

•  $m\angle A=\cos^{-1}\left(\frac{18}{30}\right)$  

•  $m\angle A=\cos^{-1}\left(\frac{24}{30}\right)$  

Find the measure of the angle, rounded to the nearest tenth.

• 46.2°

• 43.8°

• 35.8°

• 60°

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Find the measure of the angle, rounded to the nearest tenth.

• 41.1°

• 48.9°

• 60.7°

• 60°

Tags

CCSS.HSG.SRT.C.6

CCSS.HSG.SRT.C.8

Find the measure of the angle, rounded to the nearest tenth.

• 30°

• 36.9°

• 53.1°

• 60°

Find the measure of the angle, rounded to the nearest tenth.

• 64.9°

• 23.0°

• 30°

• 25.1°

Find the measure of the angle, rounded to the nearest tenth.

• 36.9°

• 53.1°

• 75°

• 48.6°

Choose the correct set-up to solve for  $m\angle C$ .

•  $m\angle A=\sin^{-1}\left(\frac{18}{30}\right)$  

•  $m\angle A=\tan^{-1}\left(\frac{18}{30}\right)$  

•  $m\angle A=\cos^{-1}\left(\frac{18}{30}\right)$  

•  $m\angle A=\cos^{-1}\left(\frac{24}{30}\right)$  

Choose the correct set-up to solve for $m\angle C$ .

• $m\angle C=\sin^{-1}\left(\frac{36}{45}\right)$

• $m\angle C=\tan^{-1}\left(\frac{27}{36}\right)$

• $m\angle C=\cos^{-1}\left(\frac{27}{45}\right)$

• $m\angle A=\cos^{-1}\left(\frac{36}{45}\right)$

Choose the correct set-up to solve for  $m\angle A$ .

•  $m\angle A=\sin^{-1}\left(\frac{36}{45}\right)$ 

•  $m\angle A=\tan^{-1}\left(\frac{27}{36}\right)$ 

•  $m\angle C=\cos^{-1}\left(\frac{27}{45}\right)$ 

• $m\angle A=\cos^{-1}\left(\frac{36}{45}\right)$

If a bird is on the ground, 7 ft away from a 10 ft tall tree, then what is the angle (to the nearest degree) at which the bird is looking up at the top of the tree?