A 25 foot long ladder is proper against a wall at an angle of 18° with the wall. How high up the wall does the ladder reach?

Question

asked Aug 13, 2019 94.7k views

2 Answers

Merhawi Fissehaye · Answer 1 · 2019-08-18T18:29:14+0000

Cosine 18° = adjacent / hypotenuse = Wall height / ladder length

Cosine 18° = Wall Height / 25

0.95106 = Wall Height / 25

Wall Height = 23.7765 feet