GCSE Secondary Maths Age 13-17 - Geometry & Measures: Circle Theorem - Explained

What is the radius of the circle mentioned in the text?

Explain the significance of the tangents DA and DC in relation to the circle.

How do you calculate the length of an arc in a circle?

What is the reflex angle COA and how is it determined?

Describe the process of finding angle X in triangle OAD.

What is the final length of the arc ABC, and how is it expressed?

Discuss the importance of the right angle formed by the radius and tangent in solving the problem.