This document defines circle geometry terminology like chord, arc, inscribed angle, and central angle. It then presents 5 circle theorems: 1) the perpendicular bisector of a chord passes through the circle's center, 2) congruent chords are equidistant from the center, 3) the measure of a central angle is equal to twice the measure of the angle at the circumference, 4) angles subtended by the same arc are equal, and 5) an angle subtended by a diameter is a right angle. It also states that opposite angles in a cyclic quadrilateral add to 180 degrees.

1. Circle Geometry By: Cameron Starcheski, Melanie Bender, and Sarah Somerville

3. An inscribed angle has its vertex on the circle and two chords from the arms

4. The word ‘subtended’ is used when a third chord completes the triangle

6. Circle Theorem 2: If two chords are congruent they are equidistant from the centre.

7. Circle Theorem 3: Measure of the central angle subtended by a chord is equal to twice the angle at the circumference.

8. Circle Theorem 4: Angle subtended by same arc are equal.

9. Circle Theorem 5: The angle subtended by a diameter is a right angle.

10. Cyclic Quadrilateral: Opposite angles in a cyclic quadrilateral add to 180 degrees

11. Thanks for watching Kenton!!