Question

According to this diagram, what is cos 28°? 62° 17 8 28° 90° 15 O A. 17 15 O B. 8 17 O c. 15 17 O D. O E. 8 15 15 OF.​

Answer 1

C.
`Cos(28) = (15)/(17)`

Explanation:

Recall: SOHCAHTOA

Thus,

`Cos(\theta) = (Adjacent)/(Hypotenuse)`

Reference angle = 28°

Adjacent = 15

Hypotenuse = 17

Plug in the values

`Cos(28) = (15)/(17)`