Question

The perimeter of the rectangle and square are same length and breadth of the rectangle are 10 cm and 8cm respectively whatistheareaofthesquare?

Answer 1

perimeter of rectangle and Square =36cm
side of the sqare=perimeter/4
=36/4
=9cm
so,area of sqare=9×9=81cm

Answer 2

perimeter of rectangle= 2(length+ breadth)
= 2× (10+8)
=2×18
=36cm
perimeter of rectangle= perimeter of square
perimeter of square = 4× side
36 =4×side
36/4= side
9cm = side
area of square= side ^2
= 9^2
=81 cm^2