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Suppose the radius of a circle is 1. What is its circumference? Either enter an exact answer in terms of pi or use 3.14 for pi and enter your answer as a decimal.
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4 votes
Suppose the radius of a circle is 1. What is its circumference?

Either enter an exact answer in terms of pi or use 3.14 for pi and enter your answer as a decimal.

User Eric Cen
by
6.0k points

2 Answers

4 votes
The radius x2 is the diameter. The Diameter x
\pi is the Circumference.
So Lets work it out.
the Radius is 1.
1x2=2 right?
So 2xpi
Use pi as 3.14
3.14x2
3.14x2=6.28.
So the Circumference is 6.28.
ANS:6.28
User Kevdoran
by
6.0k points
6 votes
C = 2 x 3.14 x 1 (use pi as 3.14)
C = 6.28
User John Slade
by
5.1k points
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