Question

The top of a ladder 53 metres long when placed against the wall reaches a height of 45 metres how far is a foot of the ladder from the wall

Answer 1

Answer:

GIVEN BELOW

Step-by-step explanation:

There is a formula for finding this of

Square of Hypotenuse=Sum of Perpendicular square and Base square

In this we have to find the base

Square of 53=Square of 45+base square

2809=2025+base square

BY TRANSPOSITION

2809-2025=Base square

784=base square

Now we need to find out that whose square is 784

Base=28 meters