Question

the sum of the lengths of all sides of a closed figure is called its​

Answer 1

Answer:

sum of all sides of a closed plane figure is called. Perimeter. The sum of sides of a closed figure is known as its perimeter.

hope this will help you nd make sure to mark as brainlist dear

Answer 2

The sum of the lengths of all sides of a closed figure is called its perimeter.

• The perimeter of a closed figure can be calculated by adding the lengths of all its sides.
• For example, a square has four sides. If one of its sides is 3cm long, the perimeter would be the sum of all its sides.
• So, the perimeter of the given square will be 12cm.
• The unit of the perimeter remains the same as the unit of the length of the shape's side.