Question

Use the cosine ratio or the inverse cosine to solve for x. Round your answer to the nearest tenth.

Answer 1

x = 50.8°

Explanation:

By applying cosine ratio in the given triangle PQN,

cos(x) =
`\frac{\text{Adjacent side}}{\text{Hypotenuse}}`

=
`(PN)/(PQ)`

cos(x) =
`(12)/(19)`

x =
`\text{cos}^(-1)((12)/(19))`

x = 50.83°

x ≈ 50.8°