Question

Solve for x by finding the missing side of the triangle. Round your answer to the

nearest tenth.
12
28
х

Answer 1

x ≈ 10.6

Explanation:

The hypotenuse and the side adjacent to the angle are the ones marked on the diagram. The relation with the angle is ...

Cos = Adjacent/Hypotenuse

cos(28°) = x/12 . . . . . . . . . use the given values

x = 12·cos(28°) ≈ 10.6 . . . multiply by 12