GCSE Maths Practice: circle-properties

Question 2 of 10

This question reinforces understanding of the ratio between diameter and radius.

‹ ›

\( \begin{array}{l}\text{How many times longer is the diameter of a circle compared to its radius?}\end{array} \)

Choose one option:

Remember: diameter = 2 × radius. Check your units.

The diameter of a circle is twice as long as the radius. For example, if the radius is 5 cm, the diameter is 10 cm. This ratio is constant for all circles. Understanding this relationship is crucial for solving problems involving circumference and area, and for accurate geometric constructions. Practising multiple examples helps students internalise the concept. Visualising the circle and the radius-to-diameter relationship improves comprehension and prepares students for more complex circle calculations.