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  1. Circle Theorems
    1. CT1: Angle at the centre is double the angle at the edge
    2. CT2: Angle in a semi-circle
    3. CT3: Angles subtended from a chord are equal
    4. CT4: Opposite angles in a cyclic quadrilateral are equal
    5. CT5: Tangent to a circle
    6. CT6: Alternate segment theorem

Circle Theorems

Author:chriseda
Topic:Circle

  • CT1: Angle at the centre is double the angle at the edge

  • CT2: Angle in a semi-circle

  • CT3: Angles subtended from a chord are equal

  • CT4: Opposite angles in a cyclic quadrilateral are equal

  • CT5: Tangent to a circle

  • CT6: Alternate segment theorem

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CT1: Angle at the centre is double the angle at the edge

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