The length of one side of the rectangle is 4 cm of the other – 3 cm less. Find the perimeter of this rectangle.

First of all, let’s calculate the length of the second side of the rectangle. To do this, subtract another 3 cm from the length of the first side of this figure.

1) 4 cm – 3 cm = 1 cm – becomes the length of the second side of the rectangle.

Next, remember that the perimeter of a rectangle is the sum of its two identical sides of length and two identical sides of width.

We calculate the perimeter, denoting it with a capital letter R.

P = 4 cm + 4 cm + 1 cm + 1 cm = 8 cm + 2 cm = 10 cm.

To summarize: this rectangle has a perimeter of 10 cm.