How to find the area of a rectangle if its perimeter is 12 cm.

The perimeter of the rectangle is calculated using the formula:
P = 2 (a + b), where P is the perimeter, a is the length, b is the width.
Rectangle area:
S = a * b
2 (a + b) = 12.
a + b = 6.
Those. the sum of the length and width of the rectangle is 6.
It is known that the length is always greater than the width.
The following options are possible with a + b = 6:
a = 5, b = 1;
a = 4, b = 2;
Find the area of the rectangle at a = 5, b = 1:
S = a * b = 5 * 1 = 5 cm2.
S = a * b = 4 * 2 = 8 cm2.
Answer: 5 cm2 or 8 cm2.