prove the following angle properties of circles: CCT the angle at the centre of a circle is twice the angle at the circumference standing on the same arc the angle in a semicircle is a right angle angles at the circumference, standi
| 1. | Circular Logic 4 - identify correct circle geometry theorem | |
| 2. | Circular Logic 5 - concyclic quadrilaterals | |
| 3. | Circular Logic 3 - angle at circumference of circle | |
| 4. | Circular Logic 2 - angle in a semicircle | |
| 5. | Circular Logic 1 - identify correct circle geometry theorem |