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.
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Answer:
Thankyou so much....
It may help..
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Answered by
1
Step-by-step explanation:
15^2 =a^2 +12^2 (pythagores theorem)
225=a^2 +144
225-144=a^2
81=a^2
a=9m
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