Question

Howard is standing 88 yards from the bottom of a water reservoir. He estimates that the angle of elevation to the top of the water reservoir is about 60°. How far is Howard from the top of the water reservoir?

Answer 1

In the given triangle,
$\cos(60) = 88 \div distance$
Thus, distance = 88*2 = 176....
(Since cos60 is 0.5)