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What is a radius? Is it the point in the middle?How do you calculate the circumference using 3.14 pi?
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What is a radius? Is it the point in the middle?How do you calculate the circumference using 3.14 pi?

User Mark Segal
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2 Answers

6 votes
The radius is the distance from the center point of a circle to the "edge" of the circle. To calculate the circumference you use the formula: C=(D)(pi)...D stands for distance from one end of the circle to the other through the center point - basically the distance is the radius of any circle just doubled.
User Phoxis
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7.5k points
3 votes
half of the distance from one side, through the middle, to the other side.
circumference: 3.14*radius*2
User Aliensurfer
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8.1k points
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