Question

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

Answer 1

Answer:

Perimeter of sqare = 4 × s

= 4 × 15

= 60cm

A/q,

Perimeter of sqare = Perimeter of rectangle

60 = 2(l + b)

60 =2(18 + b)

60/2 = 18 + b

30-18 = b

12 = breadth of rectangle

Now,

Area of rectangle = l x b

= 18 × 12

= 216cm sq.