Question

A 10•10m long ladder is placed against a wall. The ladder reached a window 9•9m height from the ground. find the distance of the foot of the ladder from the wall​

Answer 1

Answer:

2

Step-by-step explanation:

let x be the length of ladder.

y be height of window.

z be distance of the foot of the ladder from the wall​.

Using Pythagoras theorem, we get

z² = x² - y²

z² = (10.10)² - (9.9)²

z²= 102.01 - 98.01

z² = 4

z = 2