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CIRCLES

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  • The total distance around the outside of a circle or any closed curved shape is what?
    Circumference
  • Pi is approximately what number?
    3.14
  • Is a circle 2-D or 3-D?
    2-D
  • Do circles have corners?
    NO
  • A straight line segment from the center of a circle or sphere to any point on its outer edge (circumference/surface) is what?
    Radius
  • Circle formula is?
    C = 2 x 3.14 x r
  • Center, Radius and Diameter are all characteristics of..?
    Circle
  • Circumference acts as what?
    Perimeter
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