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Parts of a Circle

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  • Which label is a radius?
    m
    y
    x
    w
  • A diameter is a chord. Must be true, Could be true, or Cannot be true?
    Must be true
  • Name the pictured part of the circle
    Sector
    Center
    Arc
    Central Angle
  • Name the pictured part of the circle
    Arc
    Central Angle
    Sector
    Center
  • Which label is a diameter?
    x
    m
    y
    w
  • Name the pictured part of the circle
    Center
    Arc
    Central Angle
    Sector
  • A central angle measures 90 degrees. Must be true, Could be true, or Cannot be true?
    Could be true
  • What is JB?
    Secant
    Tangent
    Chord
    Radius
  • A chord is a diameter. Must be true, Could be true, or Cannot be true?
    Could be true
  • Which label is a central angle?
    w
    y
    x
    m
  • What is a central angle?
    an angle whose vertex is at the center of the circle
  • Name the pictured part of the circle
    Arc
    Center
    Central Angle
    Sector
  • Which of the following is the formula for the AREA of a circle?
    2πd
    πr
    πrr
    2πr
  • Which label is a chord that is not a diameter?
    w
    y
    m
    x
  • What is BD?
    Tangent
    Secant
    Radius
    Chord
  • What is AF?
    Secant
    Tangent
    Chord
    Radius
  • What is a chord
    a line segment whose endpoints are on the circle
  • Name the pictured part of the circle
    Radius
    Sector
    Chord
    Diameter
  • Which of the following is the formula for the CIRCUMFERENCE of a circle?
    πr
    πrr
    2πr
    2πd
  • What is an arc?
    the portion of a circle between 2 points on the circle
  • A radius is a chord. Must be true, Could be true, or Cannot be true?
    Cannot be true
  • Name the pictured part of the circle
    Diameter
    Radius
    Sector
    Chord
  • What is DG?
    Chord
    Radius
    Secant
    Tangent
  • Name the pictured part of the circle
    Chord
    Diameter
    Radius
    Sector