A ladder 10 m long reaches a window 8 m above the ground. Find the dis – InterviewSolution

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1.

A ladder 10 m long reaches a window 8 m above the ground. Find the distance of the foot of the ladder from base of the wall.

Answer»

In ⊥∆ACB, ∠C = 90°, BC = ?

AC² + CB² = AB²

(8)² + CB² = (10)²

64 + CB² = 100

CB² = 100 – 64

CB² = 36

∴ CB = 6

∴ Ladder is at a distance of 6m from the base of the wall.

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