## 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.

- Secondly, use the circumference formula to get an appropriate result.

- 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.

Circumference of a Circle = 2 Πr Where, r = radius of the circle. Π = pi i.e. constant. |

Q. Find the radius of the circle whose circumference is 157 units.

Step 1: Note the value of the circumference of a circle.

Circumference of the circle = 157 units.

Step 2: Use the circumference formula to identify the radius of the circle.

So,

Circumference of a circle = 2 Πr

157 = 2 * 3.14 * r

157 = 6.28 * r

R = 157 / 6.28 = 25 cm.

Hence, the radius of the circle is 25 cm.

## Why Should you use a working backward circumference worksheet for your students?

- Working backward with a circumference worksheet will help your students to determine the radius and diameter of a circle easily.

- These worksheets will help your students to understand more about the circumference of a circle.

- Students can easily find the circumference, radius, and diameter of a circle using these worksheets.

## Download Working Backwards with Circumference Worksheet PDF

You can download and print this super fun working backward with circumference worksheets from here for your students.