Question

perimetre of square is 20 cm then what will be the area of that square​

Answer 1

Answer:

let side of square be 'a'

perimeter of square = 4a

given that perimeter is 20

so , 4a =20

a=5

then area of square =a^2

so , a^2=5^2=25

Answer 2

let side of square be x

perimeter of square=4x

perimeter=20 cm

so,

4x=20

x=20/4

x=5.

then area of square=x²

5²=25.