Question

A ladder is placed in such a way that it reaches a window 12 m high from the ground on placing it against a wall at a distance x m. If the length of the ladder is 15 m, find the distance of the foot of the ladder from the wall.​

Answer 1

Answer:

espardos nia saeba lado seuas dheas sde 12 m sedre asano sias

Step-by-step explanation:

Answer 2

Answer:

9 m

Step-by-step explanation:

Suppose AB is the ladder. AC is the height of the window above the ground and BC is the distance of the foot of ladder from the wall.

The triangle ABC is right angled at C.

∴ AB² = AC² + BC²

=> 15² = 12² + x²

=> 225 - 144= x²

=> 81 = x²

=> 9 = x

• Hence, distance of the foot of the ladder from the wall is 9 m.