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What is the approximate circumference of a circle with a radius of 20 inches? Use π ≈ 3.14. A. 125.6 inches B. 62.8 inches C. 251.2 inches D. 120 inches
asked
Sep 4, 2016
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What is the approximate circumference of a circle with a radius of 20 inches? Use π ≈ 3.14.
A.
125.6 inches
B.
62.8 inches
C.
251.2 inches
D.
120 inches
Mathematics
high-school
Andy Copley
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Andy Copley
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6
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circumference
=
2PIr
20*2*3.14 = 40*3.14 =
125.6
The answer is
A. 125.6
Voigtan
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Sep 7, 2016
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Voigtan
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4
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C = (2)(pi)(r)
So in this case, the circumference is
125.6 inches
Norling
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Sep 8, 2016
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Norling
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