BOB AND SQUARES

Bob has built a new house and in that house he needs windows to be in square shape but the constructor has built glass windows of size $a$ $(width)$ and $h$ $(height)$ for building. Now the constructor is charging extra money for cutting the glass into square shape and fitting to size of width $a$ and height $h$ and he is charging on the bases of cut he will make to glass to fit size and so you sh