What is the length of x? Round to the nearest tenth.

9.7 m, 10.4 m, 37.3 m, 38.6 m

Solution:

Cosine of an angle is adjacent side/ hypotenuse

Adjacent side = 10 m

Hypotenuse = x

Substituting the values

cos (75°) = 10/x

By further calculation

0.2588 = 10/x

So we get

x = 10/0.2588

x = 38.63 ≈ 39

Therefore, the length of x is 39 m.

What is the length of x? Round to the nearest tenth.
9.7 m, 10.4 m, 37.3 m, 38.6 m

Summary:

The length of x is 39 m.