The length of the rectangle is 6 cm, the area is 24 cm2, calculate the perimeter.

In order to find the perimeter of a rectangle, you need to know the lengths of its sides.
And from the condition of the problem, we know the length of the rectangle is 6 cm and its area is 24 cm ^ 2.
Let’s remember the formula for finding the area of a rectangle.
S = a * b, where a and b are the length and width of the rectangle, respectively.
We know the area and length, we plug it into the area formula and find the width.
6 * b = 24;
We are looking for a variable as an unknown factor:
b = 24: 6;
b = 4 cm is equal to the width of the rectangle.
We look for the perimeter by the formula: P = 2 (a + b) = 2 (6 + 4) = 2 * 10 = 20 cm.