Angles INSIDE and OUTSIDE Circles

Catherine, Apr 28, 2025

Angles Circles


  • 1. Central Angle
  • 2. Chord-Chord Angles
  • 3. Inscribed Angle
  • 4. Tangent-Chord Angle
  • 5. Tangent-Tangent Angle
  • 6. Tangent-Secant Angle
  • 7. Secant-Secant Angle

1.

Central Angle

Definition of Central Angle
A central angle is an angle whose vertex is the center of a circle, and whose sides are radii.
Try It !
Drag points C and D to change the measure of the central angle and the arc. Look at the relationship between the angle A and arc CD.
Notice: where is the vertex of the angle? Inside or Outside
– Catherine, acastagna

2.

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3.

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4.

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5.

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6.

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7.

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