Question

a 15 long ladder reaached a Windows 12 m hight from the ground on placing it against a wall at distance x find the distance of the foot of ladder from the wall​

Answer 1

root of 15square-12square=225-144

=root 81

9

Answer 2

Answer:

Let the lenth of the distance of the foot of the ladder be x

B/c 12square+x square =15 square

or, x square = 15 square - 12 square

or, x square =225-144

or, x=root 81

or, x=9

so , the length of the distance =9m