Question

Please answer please both please

Answer 1

see explanation

Explanation:

(5)

Using the tangent ratio in the right triangle

tan ? =
`(opposite)/(adjacent)` =
`(17)/(30)`, thus

? =
`tan^(-1)`(
`(17)/(30)` ) ≈ 30° ( to the nearest degree )

(6)

Use any of the 3 trig ratios to solve.

Using the cosine ratio

cos ? =
`(adjacent)/(hypotenuse)` =
`(80)/(82)`, thus

? =
`cos^(-1)`(
`(80)/(82)` ) ≈ 13° ( to the nearest degree )