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This section will cover the fundamentals and rules for finding the circumference.
Finding the Circumference - Method 1
The circumference is the distance around the circle. Finding the circumference of a circle is like finding the distance around a dome ceiling.
The formula for the circumference of a circle is:
If the diameter has a greater width, the circle is larger.
If the diameter has a lesser width, the circle is smaller.
Example 1: Find the circumference of a circle with a diameter of 4 inches.
Example 2: Find the circumference of a circle with a diameter of 12 inches.
Finding the Circumference - Method 2
Another way to write the formula is:
Note: The diameter is twice the size of the radius.
Geometry is a type of math that focuses on the study of shapes and measurements and relations to points, lines, angles, surfaces, and solids.
Math: Circumference - Tutorial
Circumference = x diameter
C = 2 r
The (pi sign) is approximately 3.14. It represents the relation between the
circumference to the diameter of a circle.
Circumference = x diameter
Circumference = 3.14 x 4
Circumference = 12.56 inches
Circumference = x diameter
Circumference = 3.14 x 12
Circumference = 37.68 inches
Example 3:
Example 2:
