# Circumference of a Circle Worksheets

What is the Circumference of a Circle? A circle is a round shape that has an internal angular measure of 360 degrees and is perfectly symmetric. Its boundary is called the circumference, and it can be divided into two halves by its diameter. Half of the diameter of a circle is known as the radius, and a line connecting one point on the circumference of a circle with another point on its circumference is known as a chord. There can be many chords, diameters, and radii within a circle, and each diameter is bound to divide the circle into two halves. The circumference of a circle is responsible for its round circular shape since it determines whether the shape is a circle or not. The circumference needs to be drawn symmetrically at every point, and it should be ensured that the shape being constructed covers all 360 degrees or else the shape won't remain symmetric, and it won't be called a circle. The circumference is involved in many circular calculations, most important of which is the value of 'pi', which is the ratio between the circumference and the diameter of any circle.

• ### Basic Lesson

Guides students through determining the circumference of a circle given a radius. Find the circumference of a circle with radius BV = 5 cm. Here we have radius = 5 cm. Using the formula Circumference = 2 π × radius.

• ### Intermediate Lesson

Demonstrates how to determine the circumference of a circle when given a diameter.

• ### Independent Practice 1

A really great activity for helping students to understand the concept of the circumference of a circle. Find the circumference of the circles. (Use π as 3.14)

• ### Independent Practice 2

Students determine the circumference of a circle in 20 assorted problems. The answers can be found below.

• ### Homework Worksheet

Students are provided with 12 problems to achieve the concepts of Circumference of a Circle.

• ### Skill Quiz

This tests the students ability to determine the Circumference of a Circle.

• ### Homework and Quiz Answer Key

Answers for the homework and quiz.

• ### Lesson and Practice Answer Key

Answers for both lessons and both practice sheets.