Today we looked at three circle theorems:
The angle at the centre is twice the angle at the circumference.
The angle in a semicircle is a right-angle.
Angles at the circumference in the same segment are equal.
The best way to learn circle theorems is to practise using them, so it’s a good idea to finish the questions we did in class – here they are with answers.
If you want to look again at the proofs, look at this document.