Circumference of a circle
This worksheet will be available soon
Printable PDF · No ads
Trial members get new resources first via email.
Free printable circumference of a circle worksheets for 5th grade. Students calculate circumference using both C = πd and C = 2πr, practicing with the approximate value π ≈ 3.14 and identifying whether radius or diameter is given. These worksheets introduce circular measurement and the significance of pi for the first time. Part of our geometry worksheets collection.
What You'll Learn
- Calculate circumference using C = πd or C = 2πr
- Identify radius and diameter in circle problems
- Apply 3.14 as an approximation for π in calculations
FAQ
What is the relationship between radius, diameter, and circumference?⌄
The diameter is twice the radius (d = 2r), and the circumference is π times the diameter (C = πd) — so if you know any one of the three measurements, you can find the others.
Why do 5th graders typically use 3.14 instead of the exact value of π?⌄
π is irrational (non-terminating, non-repeating), so 3.14 is a practical approximation that produces answers accurate enough for 5th grade geometry while keeping the arithmetic manageable.
What real-world objects require calculating circumference?⌄
Bicycle wheel size, the circumference of a circular track, the length of material needed to wrap a cylindrical gift, and the diameter of a pizza all involve circumference reasoning in practical everyday contexts.
Ratings & Reviews
3Jamie T.
1st Grade Teacher · Verified download
Thanks for creating this! I'll be using it the moment it's available.
Helpful · 4
David L.
2nd Grade Teacher · Verified download
Looking forward to this! All the other ClassWeekly worksheets are excellent so I know this will be too.
Helpful · 8
Rachel H.
Homeschool parent · Verified download
We've been waiting for this topic. Signed up just to get notified when it's ready.
Helpful · 6
What is ClassWeekly?
ClassWeekly offers free worksheets and printable learning resources for kids in preschool to grade 5. All worksheets are aligned to Common Core standards and designed by educators. Become a member to access the full library and download unlimited PDFs.
