# Working backwards with circumference Worksheet

## 8 problems

Circumference is the total length of the outer boundary of a circle. It can also be referred to as the perimeter of the circle. It is the product of the diameter and constant pi. You can get the circumference of a circle in units like centimeters, meters, kilometers, and so on. The circumference of a circle can be calculated by knowing either the radius or diameter of the circle.

Grade 7
Circles
7.G.B.4

## Things to keep in mind while working backwards with circumference

• Firstly, determine the radius or diameter of the circle. If not given, use the value of circumference to find the radius and diameter.

• The circumference of a circle is 2 Πr. The value of Π is constant i.e 3.14 or 22/7.

Here is an example to solve the problem of working backward with the circumference. Let’s look at the given example mentioned below to understand more about the concept.

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