Question

Find the unknown length x in the right triangle to the nearest tenth

Answer 1

x = 13.2

Explanation:

cos ∅ = base / hypotenuse

cos 25° = 12 / x

cos 25° * x = 12

.91 * x = 12

x = 12 / .91

= 13.18

by rounding off to the nearest tenth,

x = 13.2