I'm adding some questions (and answers) to GraphicMaths

I’ve started refreshing some of the older articles on graphicmaths.com, and adding a few exam style questions as I go. The questions include answers, with a reveal button to allow students to try them before seeing the answer.

So far I have updated:

• Angle at the centre of a circle is twice the angle at the circumference

• Angle in a semicircle is 90°

• Perpendicular bisector of chord theorem

The questions are in a similar style to the ones in the Circle Theorems Workbook. Please let me know in the comments if you find this useful