Question

length of boundary of a plane figure is called ________

Answer 1

The length of the boundary of a closed figure is called the perimeter of the plane figure.

Answer 2

The length of the boundary of a plane figure is called Perimeter.

• Perimeter is defined as the length of the boundary of a shape.
• The perimeter can be found for both closed or open shapes.
• The perimeter of shapes can be calculated using a scale for practical use or by formulas.
• The formula for the perimeter of a square is 4a, for the rectangle is 2(a+b), etc.