Question

A ladder reaches a window which is 15m above the ground on one side of the street. Keeping its foot at the same point, the ladder is turned to the other side of the street to reach a window 8m high, the width of the street, if the length of the ladder is 17m is:

Answer 1

Answer:

In △ADC,

AD2+AC2=CD2

92+AC2=152

AC2=225−81

AC=12 m

In △BEC,

EC2=BC2+BE2

152=122+BC2

225−144=BC2

BC=9 m

Width of the road = AC+BC = 12+9 = 21 m