alleryCircumference of circle with radius 7:
A49π
B14
C44
D2π × 7 = 14π ≈ 43.98 (or exactly 44 with π = 22/7)
Answer & Solution
Correct answer: D. 2π × 7 = 14π ≈ 43.98 (or exactly 44 with π = 22/7)
We have C = 2πr.
That is C = 2π × 7.
So C = 14π.
With π = 22/7: 14 × 22/7 = 44.
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