How is the area of the rectangle and the perimeter of the rectangle found?

1. In order to calculate what the area of a rectangle is equal to, it is necessary to find the product of two dimensions, namely length and width. That is, you need to multiply the length of the rectangle by its width. The formula for finding the area of a rectangle is as follows:

S = a * b, where S is the area of the rectangle, a, b are the lengths of its sides.

2. In order to calculate the perimeter of a rectangle, it is necessary to find the sum of the lengths of all its sides. That is, you need to add the lengths of all four sides. The formula is:

P = a + a + b + b = 2 * (a + b).