The perimeter of the parallelogram is 88 cm. Find side AB if it is 2 cm less than AD.

A parallelogram is a quadrangle with opposite sides parallel in pairs. In a parallelogram, opposite sides are equal.

The perimeter of a parallelogram can be calculated using the formula:

P = 2 * (a + b).

P = 88 cm.

Let’s denote the side AB by the symbol x.

Let’s compose and write an equation.

2 * (x + x + 2) = 88;

4 * x = 84;

x = 21.

Answer: side AB is 21 cm.