The perimeter of a rectangle whose length is 24 cm is equal to 72 cm.

The perimeter of a rectangle whose length is 24 cm is equal to 72 cm. Find the area of a square if the length of its side is equal to the width of the rectangle?

Formula for the perimeter of a rectangle:

P rectangle = (a + b) * 2, where:

a is the length of the rectangle;

b – the width of the rectangle;

72 = (24 + b) * 2;

72 = 48 + 2b;

72 – 48 = 2b;

2b = 24;

b = 24/2;

b = 12.

Area of a square formula:

S = a2;

S = 122 = 144 cm2;

Answer: S square = 144 cm2.