Measuring the Circumference
Let's see if this is true
We are going to measure the circumference of a circle using the graph below.
Click and drag the blue point at the top of the circle up or down to change the size of the circle's diameter.
Click and drag the grey "Roll The Circle to measure the circumference of the circle.
Click on the blue button and drag it to 4. Roll the circle. What is the measure of the circumference of a circle when the diameter measures 4?
How many times larger is the measure of the circumference than the measure of the diameter?
Click on the blue button and drag it to 6. Roll the circle. What is the measure of the circumference of a circle when the diameter measure 6?
How many times larger is the measure of the circumference that the measure of the diameter?
Click on the blue button and drag it to 5. Roll the circle. What is the measure of the circumference of a circle when the diameter measures 5?
How many times larger is the measure of the circumference that the measure of the diameter?
In any circle, the measure of the circumference will always be 3.14 times larger than the measure of its diameter.