Perimeter of a square and a rectangle is same. If a side of the square is 15cm and one side of the rectangle is 18cm, find the area of the rectangle.

Length of rectangle = 18 cm

Side of square = 15 cm

Perimeter of square = 4 × 15

= 60 cm

Perimeter of rectangle = Perimeter of square

2 × (l + b) = 60

18 + b = 30

b = 12 cm

Area of rectangle = 18 × 12

= 216 sq.cm