A 13 m long ladder rests against a vertical wall

MATHEMATICS · Single correct · A Level · Mathematics · Trigonometry · Trigonometry

Problem

A 13 m long ladder rests against a vertical wall. Its foot is 5 m away from the wall. Calculate

\tan \alpha

, where

\alpha

is the angle between the ladder and the ground. (a)

\dfrac{5}{12}

(b)

\dfrac{12}{5}

(c)

\dfrac{5}{13}

(d)

\dfrac{13}{5}