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Circles and related terms

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  • Is the set of all points that are of the same distance from point in a plane.
    circle
  • What is the measure of a semicircle?
    180
  • The segment from the center to any point on the circle is called__________.
    radius
  • A ___________ is an angle whose vertex is the center of the circle.
    central angle
  • A chord that passes through the center of the circle is called ________.
    diameter
  • What is segment OC?
    radius
  • Given a circle with a diameter of 10 m, what is the radius?
    5m
  • What is O?
    center
  • Given a circle with a radius of 8 cm, what is the diameter?
    16cm
  • What is segment AB?
    diameter
  • A ___________ is an angle whose vertex is the center of the circle.
    central angle
  • What is segment PQ?
    chord
  • A segment whose endpoints both lie on the circle is called _______.
    chord
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