Mathematically, the circumference of a circle is the product of the diameter of the circle. It is twice the radius and the constant π. It is the length of the complete arc of a circle. The circumference of a circle is also known as the perimeter of the circle. The unit of the circumference is the same as its length, and it is also a linear value.

Grade 7

Circles

7.G.B.4

Teaching Circumference of the Circle Easily

Diameter: The distance across the circle through the center. It is denoted by 'd'.

Radius: The distance from the center to any point on the circle. It is denoted by 'R.'

Π or Pi: It is a constant value, i.e., 22/7 or 3.14.

Circumference of the Circle = 2Πr where

R = radius of the circle

Π = 3.14 or 22/7

Here is an example of the circumference of the circle. Let’s consider the given example to learn how to solve a question on the circumference of the circle.

Q. If the radius of the circle is 3 cm, find the circumference of the circle.

Step 1: Identify the radius of the circle.

Radius = 3 cm.

Step 2: Use the circumference formula.

Circumference of the circle = 2Πr.

2 * 3.14 * 3 = 18.84 cm.

Why Should You Use a Circumference of the Circle for Your Students?

Solving the area and circumference of a circle worksheet will help your students to get a better understanding of parts of a circle such as radius, diameter, and area.

These worksheets will make the students well versed in the concept of a circle being a closed figure having a circumference and not a perimeter.

Download Circumference of a Circle Worksheet PDF

You can download and print these super fun circumference of a circle worksheets from here for your students.

Teaching Circumference of the Circle Easily

Diameter: The distance across the circle through the center. It is denoted by 'd'.

Radius: The distance from the center to any point on the circle. It is denoted by 'R.'

Π or Pi: It is a constant value, i.e., 22/7 or 3.14.

Circumference of the Circle = 2Πr where

R = radius of the circle

Π = 3.14 or 22/7

Here is an example of the circumference of the circle. Let’s consider the given example to learn how to solve a question on the circumference of the circle.

Q. If the radius of the circle is 3 cm, find the circumference of the circle.

Step 1: Identify the radius of the circle.

Radius = 3 cm.

Step 2: Use the circumference formula.

Circumference of the circle = 2Πr.

2 * 3.14 * 3 = 18.84 cm.

Why Should You Use a Circumference of the Circle for Your Students?

Solving the area and circumference of a circle worksheet will help your students to get a better understanding of parts of a circle such as radius, diameter, and area.

These worksheets will make the students well versed in the concept of a circle being a closed figure having a circumference and not a perimeter.

Download Circumference of a Circle Worksheet PDF

You can download and print these super fun circumference of a circle worksheets from here for your students.

Teaching Circumference of the Circle Easily

Diameter: The distance across the circle through the center. It is denoted by 'd'.

Radius: The distance from the center to any point on the circle. It is denoted by 'R.'

Π or Pi: It is a constant value, i.e., 22/7 or 3.14.

Circumference of the Circle = 2Πr where

R = radius of the circle

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