Question

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

Answer 1

Answer:

Answer...................

Answer 2

H^2=P^2+B^2.

AC^2=AB^2+a^2

15^2=12^2+a^2

225=144+a^2

225-144=a^2

81=a^2

a=√81=9

distance of foot of the ladder from the wall is 9cm

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