4. Cyclic Quadrilateral
- Author:
- James Harris
The points of quadrilateral ABCD all lie on the circumference of a circle. Quadrilaterals with this property are called cyclic quadrilaterals.
Move around points A, B, C and D.
What do you notice about and ?
Given what you know about quadrilaterals, what can you infer about the relationship between and ?
Mark the checkbox and mover around the points to confirm the relationship.