If the radius is 7, what is the circumference using pi = 3.14?

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Multiple Choice

If the radius is 7, what is the circumference using pi = 3.14?

Explanation:
C = 2πr is used to find circumference. With r = 7 and π = 3.14, multiply: 2 × 3.14 × 7 = 6.28 × 7 = 43.96. So the circumference is 43.96 units. You can also use C = πd with diameter d = 14, giving 3.14 × 14 = 43.96, which confirms the result. The other numbers come from common slips—for example, using a different π value or confusing diameter with radius.

C = 2πr is used to find circumference. With r = 7 and π = 3.14, multiply: 2 × 3.14 × 7 = 6.28 × 7 = 43.96. So the circumference is 43.96 units. You can also use C = πd with diameter d = 14, giving 3.14 × 14 = 43.96, which confirms the result. The other numbers come from common slips—for example, using a different π value or confusing diameter with radius.

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