Circumference of a circle from the diameter
Circumference = π × diameter, with π = 3.14. Double the radius to get the diameter.
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 24 cm. Find its circumference. Use π = 3.14.
Answer: 75.36
A circle has a diameter of 92 cm. Find its circumference. Use π = 3.14.
Answer: 288.88
A circle has a diameter of 32 cm. Find its circumference. Use π = 3.14.
Answer: 100.48
Tip: Circumference = π × diameter, with π = 3.14. Double the radius to get the diameter.
Print a worksheet of this skill New questions and an answer key, free.
Up next
- Next in this topic Circumference of a circle: radius or diameter Grade 7
Print a free worksheet with answers (20 questions).
Practice without limits
Members practice as much as they like, every day, and get the printable packs and lessons too.