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Which of the following is not equivalent to the formula for the circumference of a circle, C = 2pir ? A) C over r equals 2 times pi B) C over pi equals 2 times r C) C over the quantity of r times pi equals
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Which of the following is not equivalent to the formula for the circumference of a circle, C = 2pir ?

A) C over r equals 2 times pi

B) C over pi equals 2 times r

C) C over the quantity of r times pi equals 2

D) Cr = 2pi

User Carsten Hagemann
by
8.8k points

2 Answers

5 votes
D) Cr = 2pi
This is because you cannot just move the r over to the other side of the question, you have to divide it out, and whatever you do to one side, you must do to the other.
User Johannes Rudolph
by
8.0k points
1 vote
The correct answer is Cr = 2Pi
User Flori
by
8.1k points
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