Question

Perimeter of a square is 20 cm, then what will be the area of that square.​

Answer 1

Perimeter of square =20cm

∴4a=20

a=5

area of square =a

2

=5

2

=25cm

Answer 2

Answer:

perimeter of a square:4*side

hence 20=4*side

therefore side of the square=20÷4=5 cm

area of a square=side*side=5*5=25 cm