Question

a ladder 25 m long reaches a window of a building 20 m above the ground. determine the distance of the ladder from the building.
​

Answer 1

Answer:

Let AC be the ladder and A be the position of the window. Thus, the distance of the foot of the ladder from the building is 15m.

Hope This helps you mate ☺️

#Siddharth here!

Answer 2

Step-by-step explanation:

Suppose that AB is the ladder, B is the window and CB is the building. Then, triangle ABC is a right triangle with right-angle at C.

By pythagoras theoram, we have

∴ AB

2

=AC

2

+BC

2

⇒ 25

2

=AC

2

+20

2

⇒ AC

2

=625−400=225

⇒ AC=

225

m=15m

Hence, the foot of the ladder is at a distance 15m from the building