Question

Solve 17 and 18 please.

Answer 1

Explanation:

17.

sin20° =
`(1)/(x)`

x = 1 ÷ sin20°

x ≈ 2.9238

cos20° =
`(x)/(y)`

y = x ÷ cos20°

y ≈ 2.9238 ÷ cos20° ≈ 3.11

18.

x = 2√3 ≈ 3.46

y = √3 ≈ 1.732