Question

Q23.
A 15 mtr. long ladder reached a window of 9 mtr. 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?
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Answer 1

it s make a triangle where hypotenuse is 15m and

perpendicular is 9m

H²=P²+B²

15²= 9² +B²

225-81 =B²

144=B²

B=12 m

hence dist between ladder and wall is 12mtr