Circle LabGrade 7 · 7.G.B.4
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Grade 7 · Think & learn · Ages 12–13

Circle Lab

Maths standard7.G.B.4Know and use the formulas for the circumference and area of a circle.

  1. Use π ≈ 3.14.
  2. Circumference C = π × d. Area A = π × r².
  3. Watch whether you’re given the radius or the diameter!
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