Question

A ladder 15 m long reaches a window which is 9 m
above the ground on one side of street keeping its
foot at the same point, the ladder is turned to other
side of the street to reach a windows 12 m high.
Find the width of the street (in metres)?
(1) 12 (2) 9
(3) 20 (4) 21

Answer 1

Step-by-step explanation:

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