Simple instructions to find the circumference of a circle with an explanation of Pi to find the circumference.
These instructions are written in a simple format to quickly explain how to find the circumference of a circle and briefly explains Pi with formulas and example shown.
The outer part of a circle is described as its circumference like the example shows. That’s the distance around the entire circle. If you divide the circumference by the diameter, you get a value called Pi.
Pi is pronounced the same as the PIE you eat. The symbol used to represent Pi doesn’t look as tasty. It appears like this symbol. It’s basically a simple way of representing the number 3.14159265…., but easier to just remember and use 3.14 from now on. Pi is a constant number.
To find the circumference of a circle you multiply the diameter by Pi. The formula looks like this:
For example, if d=3 feet, then you multiply 3 feet by 3.14. In this case the circumference would be 9.42 feet/ft.
All posts in this series: What is a circle? | What is the radius of a circle? | What is the diameter of a circle? | What is the circumference of a circle? | What is the area of a rectangle? | What is the perimeter of a triangle? | What is the area of a triangle?