Question

Please help! Thank you! ♥

Answer 1

40

Explanation:

You have a 30-60-90 right triangle. The hypotenuse is twice the length of the short leg.

BC = 2 * 20 = 40

Answer 2

Law of cosines.

Cos(angle) = Adjacent Leg / Hypotenuse

Cos(60) = 20 / x

X = 20/cos(60)

x = 40 ft.