Question

Solve the right triangle. Round to the nearest degree and nearest tenth of a unit. What is the right angleX?

Answer 1

m∠X ≈ 29°

Explanation:

The hypotenuse and the side adjacent to angle X are given. The relevant trig relation is ...

Cos = Adjacent/Hypotenuse

cos(X) = XW/XV = 7/8

The inverse cosine function is used to find the angle.

X = arccos(7/8) ≈ 29°