The length of the rectangle is 5 cm. What is the width if the perimeter of the rectangle is 14 cm?

The solution of the problem:
The perimeter of a rectangle is calculated by the formula: P = 2 * (A + B), where A is the length of the rectangle, B is the width of the rectangle.
To determine the width of the rectangle, we transform the formula and substitute the values into it and find B:
P = 2 * (A + B);
A + B = P / 2;
B = P / 2 – A;
B = 14/2 – 5;
B = 7 – 5;
B = 2.
Answer: The width of the rectangle is 2 cm.