Find the area and circumference of circles in terms of pi
Circumference is 2πr; area is πr². Leave π in the answer.
Loading a question…
You've done today's 10 free questions.
Come back tomorrow for 10 more, or get unlimited practice with a membership.
Want more today? Print 20 more questions free, with the answers.
Already a member? Sign in.
See worked examples
A circle has a diameter of 56 cm. What is its circumference? Write it as a multiple of π, like 10π.
Answer: 56π
A circle has a radius of 20 cm. What is its circumference? Write it as a multiple of π, like 10π.
Answer: 40π
A circle has a diameter of 26 cm. What is its circumference? Write it as a multiple of π, like 10π.
Answer: 26π
Tip: Circumference is 2πr; area is πr². Leave π in the answer.
Print a worksheet of this skill New questions and an answer key, free.
Up next
- Next in this topic Find sector area and arc length in terms of pi Year 11
Print a free worksheet with answers (20 questions).
Practise without limits
Members practise as much as they like, every day, and get the printable packs and lessons too.