11X1 T07 03 angle theorems 2

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  • Angle Theorems

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.Proof:Join AO and CO

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.Proof:Join AO and CO

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.Proof:Join AO and CO

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.Proof:Join AO and CO

  • Angle Theorems(5b) Opposite angles of a cyclic quadrilateral are supplementary.Proof:Join AO and CO

  • (5c) The exterior angle of a cyclic quadrilateral is equal to the opposite interior angle.

  • (5c) The exterior angle of a cyclic quadrilateral is equal to the opposite interior angle.

  • (5c) The exterior angle of a cyclic quadrilateral is equal to the opposite interior angle.

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.Proof: Join AO and DO

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.Proof: Join AO and DO

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.Proof: Join AO and DO

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.Proof: Join AO and DO

  • (6) Angles subtended at the circumference by the same or equal arcs (or chords) are equal.Proof: Join AO and DOExercise 9C; 1 ace etc, 2 aceg, 3, 4 bd, 6 bdf, 7 bdf, 9, 13, 14