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Circumference and Area of a Circle

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  • What is 10 squared equal to?
    100
  • Give an object that resembles a circle.
    ...
  • Explain how you multiply numbers with decimals.
    ...
  • Which part of the circle is its area?
    The space/region inside.
  • What is the radius of the circle if the diameter is 10 cm?
    5 cm
  • How many squares are there on an 8 by 8 chess board?
    64
  • How do you solve for the circumference of a circle?
    Multiply pi by the diameter.
  • What is pi?
    The ratio between the circumference to the diameter.
  • TRUE OR FALSE. Circle is a polygon.
    FALSE
  • CIRCUMFERENCE OR AREA. If I am trying to figure out how much ribbon to put around a circular frame, I need the...
    circumference
  • How do you get the length of the radius from a given diameter?
    Divide the diameter by two.
  • CIRCUMFERENCE OR AREA. If I am trying to figure out how much space is inside a circular frame, I need the...
    area
  • The radius is 3 meters, what is its diameter?
    6 meters
  • What do you call the line segment that connects the center and a point in the circumference of a circle?
    radius
  • TRUE OR FALSE. Diameter is half the radius.
    FALSE
  • TRUE OR FALSE. To get the area of a circle, multiply ? by the radius.
    FALSE
  • What is circle?
    Set of all points that are equidistant from another single point.
  • What do you call the perimeter of a circle?
    circumference
  • Which part of the circle is its area?
    The space/region inside.
  • If the diameter is 20 inches, what is its radius?
    10 inches
  • What is the estimated value of pi?
    3.14
  • What is the diameter of the circle with a radius of 9 cm?
    18 cm
  • How do you solve for the area of a circle?
    Multiply pi by radius squared.
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