Find the area of a square if its perimeter is 40m.

Question

Find the area of a square if its perimeter is 40m.

Answer 1

In a square, all 4 sides are equal.  The perimeter is equal to 4s, where s is the length of the sides.

 

So 4s = 40 m, and therefore s = 10 m.

 

So the length of each side is 10 m.

 

The area of a square is s², so the answer is 10² = 100 m².

 

 

Answer 2

The perimeter of the square is the distance around the square, which is the sum of the lengths of all four sides.

If the perimeter of a square is 40m, what is the length of each side?

 

The area of the square will be the square of the length of one side

 

A = s²