Question

Find the area of square whose perimeter is 80m.

Answer 1

perimeter of square=4×side
so 4×side=80m
side=80/4
so, side=20m

now area of square=side × side
so,
20m×20m=400m^2
area of square =
400m^2...

Answer 2

Area of square park is 400 m² whose perimeter is 80m.​

Given :

Square Park with perimeter 80 m

To Find:

Area of the square park

Solution:

Assume that side length of the park is  a m

Step 1:

Use formula Perimeter = 4 x side length to find perimeter

Perimeter = 4a  m

Step 2:

Equate perimeter with given 80 m and solve for

4a = 80  

=> a = 20

Step 3:

Use formula for area of square = (side length )² and substitute a = 20

Area = a²

=> Area = (20)²

=> Area = 400 m²

Area of square park is 400 m² whose perimeter is 80m.​

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