A five-meter-long ladder leans against a wall, with the top of the ladder being four meters above the ground. What is the approximate angle that the angle makes with the ground? Round to the nearest degree.

Question

5443 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-04-01T22:45:06

#theta ~~53^@#

Given: A ladder forms a triangle against a wall. The ladder is #5# meters long (hypotenuse). The top of the ladder is #4# meters above the ground.

The ladder forms a triangle with the wall:
enter image source here

The angle can be found using trigonometry:

#theta = sin^(-1) (4/5) ~~ 53^@#