The sides of the parallelogram are 7: 4, and the perimeter is 165 cm. Calculate the sides of the parallelogram.

In order to find what the sides of the parallelogram are equal to, we will compose and solve the equation.

Let’s start by considering the condition of the problem. It is known that the sides of a parallelogram are 7: 4. And the perimeter of a parallelogram is also known at 165 cm.

Let’s start by introducing the coefficient k. Then the sides can be written as 7k and 4k.

Parallelogram perimeter:

P = 2 (a + b);

We get the equation:

2 (7k + 4k) = 165;

7k + 4k = 165: 2;

11k = 82.5;

k = 82.5: 11;

k = 7.5.

We are looking for the sides of the parallelogram:

7 * 7.5 = 52.5 cm and 4 * 7.5 = 30 cm.