regular hexaganol has six sides. since the perimeter of it is 72, we need to divide it to 6 to get the length of the one side which is attached to room A. 72:6=12 One side of a Hexaganol is 12, and it is attached to room A, which is quadratic. so it has equal sides, which is 12. to know the square feet of carpet to cover the floor of Room A you need to: s=a2=12*12=144