A square garden has an area of 100ft^2. What is the perimeter of the garden?

Given:

The area of a square garden = 100 sq. ft

To find:

The perimeter of the garden.

Solution:

Let the side of the square garden be a.

Area of a square =

So, .

Taking square root on both sides.

Length of side cannot be negative. So, a=10. It means, side length of the garden is 10 ft.

Perimeter of square = 4a.

Perimeter of square garden is

Therefore, the perimeter of the square garden is 40 ft.