Question

Find the value of x. Round to the nearest tenth.

15.9
12.4
12.8
16.3

Answer 1

x = 15.9

Explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj / hyp

cos 28 = 14/x

x cos 28 = 14

x = 14 / cos 28

x=15.85598

Rounding to the nearest tenth

x = 15.9