Question

a ladder is 41 m long reaches a building 9 m above the ground. Find the distance of the foot of the ladder from the building ​

Answer 1

Answer:

Let AC be the ladder, AB be the wall.

Then in △ABC,

AC

2

=AB

2

+BC

2

(Pythagoras theorem)

17

2

=15

2

+BC

2

BC

2

=8

2

BC=8 m

Hence, the foot of the ladder is 8 m from the wall.