Question

Find the perimeter of square whose area is 400m2

Answer 1

Side length of square = √400 = 20 cm
Perimeter = 4 × 20 = 80 cm

Answer 2

Here is your solution

Given :-

Area of square = 400 m^2

we have to find perimeter of square =?

Now

Area of square = side^2

=>400 m^2 = side^2

=>20m =side of square

Now

perimeter of square => 4× side .
=> 4×20=80m

Hopeit helps you