Question

perimeter of a square is one fifth of its area find the lenghth of its side


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Answer 1

Let the side of the square be x.

According to the question:

4x = 1/5 × x²

20x = x²

x = 20

,

So,

Length of its side is 20 units.

Answer 2

Let side of squre be s

Perimeter of square = 4*s

Area of square = s*s

According to the question,

Perimeter of square = 1/5 * Area of square

4s = 1/5 * s*s

4s *5 = s*s                

20s = s*s

s*s/s = 20

s = 20