Circle Terms ac circumferenceaThe circumference is the distance around the curve which makes up the circle. ... These are the same formulas because the diameter (d) always equals twice the radius (r) or d = 2r. chord arc A = Ir2 A = 3.14 x 22 A = 3.14 x 4 A = 12.56 sq. cm The symbol ... c i r c u m f e r e n c e center point AREA diameter Computing the Circumference Directions: Use the formula C = 2Ir.

Title | : | Math Challenges |

Author | : | Robert W. Smith |

Publisher | : | Teacher Created Resources - 2000-08-01 |

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