A ladder 20 m long reaches a window of a house 16 m above the ground. – InterviewSolution

1.	A ladder 20 m long reaches a window of a house 16 m above the ground. The distance of the foot of theladder from the house will be:(A) 13 m(C) 14 nm7.(B) 12 m(D) 15 m
Answer» Use Pythagorean theorem c^2=a^2+b^2 =20^2-16^2 =400-256 =144 root144 = 12m(Ans)

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