The perimeter of the rectangle is 130 cm, the length of its smaller side is 35 cm.

The perimeter of the rectangle is 130 cm, the length of its smaller side is 35 cm. The length of the larger side of the rectangle is ..

In order to find the sides of a rectangle, we will compose and solve an equation. To compose the equation, we will use the formula to find the perimeter of a rectangle:

P = 2 (a + b);

The condition says that the perimeter of the rectangle is 130 cm.The length of the smaller side is also known to be 35 cm.

Let’s denote by x cm the length of the unknown side.

2 (x + 35) = 130;

We solve the resulting equation:

x + 35 = 130: 2;

x + 35 = 65;

x = 65 – 35;

x = 30 cm the length of the second side of the rectangle.

Answer: 30 cm is the length of the smaller side.