Question

A 12-foot ladder leans against a wall at a 62 degree angle of elevation.

Find the distance from the ladder's base to the wall

Answer 1

\[\cos(62)=\frac{b}{12}\]
\[b=12\cos(62)\] then a calculator

Answer 2

cos 62 = adj/ hypo = b/12
=> b = 12* cos62 = 12 * 1.88 = 22.6 ft