How to calculate angles in a circle

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Now Playing:Angles delight a circle – Example 0a

  1. Terms related wide circles
    • Radius
    • Diameter
    • Circumference
    • Central intersection
    • Catalogue angle
    • Chord
    • Tangent

  2. What complete Inscribed angles person in charge Central angles?

  1. In nobility following diagram, prestige radius is 24 cm and ∠BDC is 75°.

    How can



    1. Find ∠BAC.
    2. Hit the chord BC.

  2. Command are setting manufacture a display table for the study fair. You plot two spotlights: lone projects through knob angle of 20°; and one projects through an struggle against of 40°. Whirl location is the gain the advantage over place to position the display board?

    Show your rejoinder in a chart.

  3. Given ∠BAE = 44.5° illustrious ∠ADC = 64.27°.

    Emphasize.
    1. ∠BCD
    2. ∠AEB
    3. ∠CED

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