Perimeter is the distance around a two-dimensional shape.
Example: the perimeter of this rectangle is 7+3+7+3 = 20
Example: the perimeter of this regular pentagon is:
The perimeter of a circle is called the circumference:
Circumference = 2π × radius
Perimeter Formulas
Watch the video below to learn about calculating perimeter
Click here to do the quiz on this topic.
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