Question

find the area of a square whose perimeter is 86 cm​

Answer 1

Step-by-step explanation:

perimeter =86cm

4×side =86

side = 21.5cm

area=side × side

21.5×21.5

462.25cm.^2

Answer 2

As we know that :

Perimeter of Square = 4 × side

According to the question : 4 × side = 86

=> side = 86/4 = 43/2 = 21.5 cm

Now, Area of square = (side)²

=> Area = (21.5)² = 462.25 cm²