Question

Find the value of x. Round to the nearest degree

Answer 1

b. 44°

Explanation:

Reference angle = x

Hypotenuse = 21

Adjacent = 15

Apply trigonometric function CAH:

`Cos(x) = (Adj)/(Hyp)`

`Cos(x) = (15)/(21)`

`x = cos^(-1)((15)/(21))`

x = 44.4153086° ≈ 44° (nearest degree)