Question

A ladder 17 m long teacher a window which is 8 m above the ground in 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 at height of 15 m . Find the width of the street

Answer 1

h sq = p sq + b sq

17 sq = 8 sq + b sq

256 = 64 + b sq

256 - 64 = b sq

192 = b sq

17 = sq