With NO in-app purchases, this is a complete educational resource for Circle Theorem and can be used for study, revision and testing. Incorporating personalised analytics and feedback, this Maths app enables you to identify areas for improvement and help focus your studies. All examples are explained in simple terms and include both sound and written step-by-step descriptions, enabling students to go back and repeat instructions as needed.

This unit is designed for pupils of all abilities and grades from levels 1-6, inclusive at GCSE level. This is an invaluable resource for any Maths student and considers the main properties of angles in a circle and their applications:

(i) Using angle and tangent properties of a circle.
(ii) Understanding that the tangent at any point on a circle is perpendicular to the radius at that point.
(iii) Using the fact that the angle subtended by a diameter at the circumference is 90°.
(iv) The properties of cyclic quadrilaterals.
(v) Using the alternate segment theorem.