How to find the sides of a rectangle if one side is twice the other and the perimeter is 72cm.

univerkov | February 15, 2021 | education

Let x cm one side of the rectangle, then 3x cm the other side.

We use the rectangle perimeter formula and create an equation.

2 (x + 3x) = 72,

2 * 4x = 72,

4x = 36,

x = 9 (cm) – the first side of the rectangle.

3x = 27 (cm) – second side.

Answer: 9 cm and 27 cm.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.