The length of the rectangle is 7 cm. What is its width if the perimeter is -20 cm?

The solution of the problem:
This task is not difficult. A rectangle is a geometric shape with equal opposite sides. The perimeter of a rectangle is equal to the sum of all its sides. From the condition of the problem, the length of the rectangle is known, you can answer the question of the problem, but first you need to find out the sum of the two sides of its width.

1. Let’s calculate what is the sum of the other two sides of the rectangle.
20- (7 + 7) = 20-14 = 6 centimeters.
2. Let’s calculate what the width of the rectangle is.
6/2 = 3 centimeters.
Answer: The width of the rectangle is three centimeters.