Question

Find x. Round your answer to the nearest tenth of a degree. plz help!

Answer 1

36.9°

Explanation:

The relevant trig relation is ...

Cos = Adjacent/Hypotenuse

cos(x) = 8/10 = 0.8

The inverse trig function is used to find the angle:

x = arccos(0.8) ≈ 36.9°