Circumference and Diameter

The purpose of this app is to examine the relationship between the diameter and circumference of a circle.[br][list][*]The diameter slider changes the diameter of the circle[/*][*]"Roll the Circle" will unroll the circumference of the circle into a segment as it is slid to the right.[/*][*]Once unrolled, use the checkbox to see the full segment of the circumference, the length of the diameter, and the measure of the circumference.[/*][/list][br][list=1][*]Use diameter = 1.5. How many diameters are created when the circumference is unrolled?[/*][*]Use diameter = 2. How many diameters are created when the circumference is unrolled?[/*][*]Use diameter = 4. How many diameters are created when the circumference is unrolled?[/*][*]Try your own diameter measure. How many diameters are created when the circumference is unrolled?[/*][*]Examine your 4 responses. What relationship would you say exists between the measurements of the diameter and circumference of a circle?[/*][*]Google the circumference of a circle. How does this relate to what you determined in this app?[/*][/list]
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Information: Circumference and Diameter