Question

A ladder reaches a point on a wall which is 20 m above the ground and its foot is
2073m away from the ground. The angle made by the ladder with the wall is _____
a) 90°
b) 60°
c) 45°
d) 30


I will mark you the brainliest answer and follow you ! ​

Answer 1

It has given that, a ladder reaches a point on the wall which is 20 above the ground and its foot is 20√3 m away from the ground.

We have to find the angle made by the ladder with the wall.

solution : let θ is the angle made by the ladder with the wall.

see diagram, tanθ = distance of wall and the foot of ladder/distance of a point reached by ladder on the wall to the ground

= 20√3/20 = √3 = tan60°

⇒θ = 60°

therefore angle made by the ladder with the wall is 60°