Question

A ladder 5m long is placed agaimst a wall of a house and reaches a window which is at the height of 4m from tje ground. How far is the lower end of the ladder from the base of the wall​

Answer 1

Answer:

by pythagoras theorem

answer is 3 cm

Answer 2

Step-by-step explanation:

Altitude  = 4m

Hypotenuse = 5m                            

Base = x

By Pythagoras theorem,

Base ^2 = hypotenuse^2 – Altitude^2

B^2 = 5^2 – 4^2

B^2 = 25 – 15

B^2 = 9

B = root of 9

B = 3

Therefore, the answer is 3m