Question

A 15 m long ladder reached a window 12 m high from the ground on placing it against a wall at a distance a. find the distance of the foot of the ladder from the wall.

Answer 1

Simply apply pythagoras theorem as the figure is forming a right angled triangle
So, a2+(12)2 = (15)2

=
$\sqrt{81} = 9$
9meters is the answer..

Answer 2

Answer:

this is your answer

plz mark as brainlist