BitWithBite
Mathematics Worksheet
⭕ Circles
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After this worksheet you can
Find circumference using C = 2πr.Find area using A = πr2.Relate radius and diameter.Use π ≈ 3.14 in calculations.📚 Quick Recap
A circle is the set of all points the same distance from a fixed center point — one of the most elegant and useful shapes in all of geometry.
🧠 Section A · Concept Check ● BEGINNER 4 × 1 = 4
1Circumference of a circle with radius 6 (π ≈ 3.14):
2Area of a circle with radius 8 (π ≈ 3.14):
3A circle of diameter 30 has radius:
4Area of a circle with diameter 10 (π ≈ 3.14):
🧮 Section B · Problem Solving ● INTERMEDIATE 2 + 3×3 = 11
5The circumference of a circle is C = .
6The area of a circle is A = .
7Find the circumference of a circle with radius 6 (π ≈ 3.14).
8Find the area of a circle with radius 8 (π ≈ 3.14).
9A circle has diameter 30. Find its radius and circumference (π ≈ 3.14).
🚀 Section C · Challenge ● CHALLENGE 5
10Find the area of a circle with diameter 10 (π ≈ 3.14).
💭 Reflection — the most useful thing I learned:
A ___/4 B ___/11 C ___/5 Total ___/20
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✂ answer key — fold or cut before handing out
1-A 2-A 3-A 4-A | 5 2πr 6 πr2 7 = 37.68 8 = 200.96 9 = Radius = 15, Circumference = 94.2 | 10 = 78.5