Circle Geometry Problems for 11+ Maths: A Parent's Guide
22 October 2026
Why circle geometry matters
Circle geometry is a key part of 11+ maths. Children are expected to solve problems about circles, including finding the circumference, area, and working with chords and sectors. Parents can help by understanding the basics and practising together.
Common circle questions
Typical 11+ questions might ask for the circumference or area of a circle, or the length of a chord. Knowing the right formulas and the steps to use them is essential.
Worked example: finding circumference
Question: What is the circumference of a circle with a radius of 7 cm?
Step 1: Recall the formula for circumference. Circumference = 2 × π × radius.
Step 2: Substitute the radius into the formula. Circumference = 2 × π × 7.
Step 3: Calculate the answer. 2 × π × 7 = 14π. Using π ≈ 3.14, 14 × 3.14 = 43.96 cm.
The circumference of the circle is 43.96 cm.
Supporting your child
Encourage your child to practise with different circle problems. Break down each question into clear steps and check their understanding of key formulas. Practice builds confidence and accuracy.
Key insight: Regular practice with circle geometry helps children recognise patterns and apply formulas confidently in the 11+ exam.
