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what is the formula of a circle circumference. C 2 p r The variables are. The diameter of a circle is the length of a straight line drawn between two points on a circle where the line also passes through the centre of a.
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Circumference of Circle 2pr units. C 2 p 275 m C 2 p 275 m. P is the mathematical constant with an approximate up to two decimal points value of 314.
Therefore the area and the circumference of the circle are 154 cm 2 and 44 cm when the radius is 7 cm.
The formula for circumference of a circle is 2pr where r is the radius of the circle and the value of p is approximately 227 or 314. Round to the nearest tenth if necessary. Where C p D. C circumference R radius of circle.
