IGCSE Maths / Circle theorems

Multi-step circle theorem problems revision notes

Edexcel International GCSE Maths (4MA1), chapter 17: Circle theorems, specification point 4.6c. Part of the full course.

Watch the video lesson · IGCSE Maths past papers

Multi-step circle problems join angle rules together, with the result from one part helping you solve the next. Identify where each angle is, then use the correct theorem and answer the angle the question asks for.

More lessons in Circle theorems

• Parts of a circle and cyclic quadrilaterals
• Tangent and radius, and two tangents from a point
• The angle at the centre is twice the angle at the circumference
• The angle in a semicircle
• Angles in the same segment
• Opposite angles of a cyclic quadrilateral
• The alternate segment theorem
• Using the alternate segment theorem in a reasoning chain
• Reasoning chains with circle theorems
• Intersecting chords inside a circle
• Intersecting chords from a point outside the circle