Question

The length and breadth of a rectangle are 40 cm and 10 cm respectively. Find the perimeter of a square of area equal to that of the rectangle.​

Answer 1

Answer:

Solution:-

Given-

length of rectangle = 40cm

breath of rectangle = 10cm

We know-

Area of rectangle = Length* Breadth

Area of rectangle = 40*10 = 400cm²

if Area of square is same as rectangle.

so we know area of Square = a²

where a is side of square.

then-

a² = 400cm²

a = 20cm

so perimeter of square = 4a = 4*20 = 80cm

Answer is 80cm