Question

What is the measure of angle A

Answer 1

27.7°

Explanation:

To find m<A, apply trigonometric function.

Reference angle = A

Side length opposite to A = 20

Hypotenuse = 43

Apply SOH, which is:

`Sin (A) = (Opp)/(Hyp)`

Plug in the values

`Sin (A) = (20)/(43)`

`A = sin^(-1)((20)/(43))`

A ≈ 27.7° (nearest tenth)