Math 3120 Reflection Opposite angles, Cyclic Quadrilateral
- Author:
- Aubrey Kemp, lowaiyip
Opposite angles, Cyclic Quadrilateral
A cyclic quadrilateral is a quadrilateral whose vertices all fall on a circle.
Write an observation about the opposite angles of a cyclic quadrilateral using this applet. (You can ignore the measurements on the left.)
Hint: Let O be the centre of the circle.