Measuring the Circumference

[size=200][b][color=#9900ff]Let's see if this is true[/color][/b][/size]
[b][color=#ff0000][size=200]We are going to measure the circumference of a circle using the graph below. [/size][/color][/b]
[b][color=#ff0000][size=150][size=200]Click and drag the blue point at the top of the circle up or down to change the size of the circle's diameter.[br][br]Click and drag the grey "Roll The Circle to measure the circumference of the circle.[br][/size][/size][/color][/b]
[size=150][b][color=#ff0000]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?[/color][/b][/size]
[b][color=#ff0000][size=150]How many times larger is the measure of the circumference than the measure of the diameter?[/size][/color][/b]
[size=150][color=#ff0000][b]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?[/b][/color][/size]
[size=150][b][color=#ff0000]How many times larger is the measure of the circumference that the measure of the diameter? [/color][/b][/size]
[b][color=#ff0000]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?[/color][/b]
[b][color=#ff0000]How many times larger is the measure of the circumference that the measure of the diameter? [/color][/b]
[b][color=#9900ff][size=200]In any circle, the measure of the circumference will always be 3.14 times larger than the measure of its diameter. [/size][/color][/b]
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– Duane Habecker, Judith Hilinski

Information: Measuring the Circumference