Geometry

Circumference of circle with radius 7

Step-by-step solution with detailed explanations

Final Answer

14π ≈ 43.98

Step-by-Step Solution

1

Formula

C = 2πr

2

Substitute

C = 2π(7)

3

Calculate

C = 14π ≈ 43.98

Expert Insights

Definition: π = C/d, so C = πd = 2πr

Linear: Circumference is proportional to radius

Pro Tip: C = 2πr or C = πd (diameter)

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