Question

Find the missing variables

Answer 1

90

Explanation:

Answer 2

`\cos(60) = (9)/(a) \\ (1)/(2) = (9)/(a) \\ a = 18 \\ \\ \\ \tan(60) = (b)/(9) \\ √(3) = (b)/(9) \\ b = 9 √(3)`

I hope I helped you ^_^