# Circle Theorems Worksheet

24 circle theorem questions. Some are pretty tough.

circle theorems

## 9 thoughts on “Circle Theorems Worksheet”

1. Sheila greenaway says:

Where can I find the whole worksheet, looks perfect.

2. Sheila says:

Thanks. I cannot get no 24! Hint?

• if you reflect the triangles onto the underside of the diameter line (or, essentially, extend all the lines), you get a bunch of similar triangles and can deduce from that.

3. Robert Kelly says:

I cannot solve the question 24..please can u make the solution available

• Answers are on the sheet. Reflect the shapes across the diameter to help

4. Joe says:

Is there some significance with the dot on the diameter between both angles a ? Otherwise extending the lines and reflecting in the diameter are surely different outcomes? Please help 😀

5. Zainab says:

I’ve managed to work out θ = 50° by reflecting the triangles along the diameter then making a cyclic quadrilateral to figure out the angle to the left of theta, then making another cyclic quadrilateral to find theta. But I’m still unsure of the relevance of angle a. Is it necessary to find it?
Thanks

6. Sam says:

How do you actually solve no. 24 step by step as extending the lines and reflecting across the diameter are 2 different things?