Question

A 15 meters long ladder reached a
window 12 meters high from the ground on placing it against a wall at a distance 'q' meters from the foot of ladder. Find the distance (q) of the foot of the ladder from the wall.​

Answer 1

Step-by-step explanation:

Here

considering a straight wall = 12m

is the height or perpendicular

and the length of the ladder after leaning becomes

hypotenuse= 15m

Now,

according to Pythagoras

H²=P²+B²

(15m)²=(12m)²+q²

q= √225m²-144m²

=√81m²

= 9m