Question

Serena leans a 24-foot ladder against a 22.8-foot-tall building to climb on the roof.

Answer 1

Sine of the Angle = opposite / hypotenuse

Sine Angle = 22.8 / 24

Sine Angle = .95

Angle = arc sine (.95)

Angle = 71.805 degrees

Angle = 71.8 (rounded)

Explanation: