A ladder 15 m long reaches a window which is 9 mabove the ground on on

1.	A ladder 15 m long reaches a window which is 9 mabove the ground on one side of street keeping itsfoot at the same point, the ladder is turned to otherside 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
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A ladder 15 m long reaches a window which is 9 mabove the ground on one side of street keeping itsfoot at the same point, the ladder is turned to otherside 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

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