Posted by **Brandi** on Tuesday, March 27, 2012 at 5:05pm.

I have a review question that says: The formula for the circumference of a circle is C = pi x d, where d represents the circle's diameter. Which statementis correct? Would it be D? Wasn't sure if a diameter could have a decimal or fraction.

A. the formula only works if d is 1

B. the formula only works if d is a whole number like 1,2,or 3

C. This formula only works if d is 1 or greater than 1

D. This formula works even if d is a fraction like 1/2 or a decimal like 1.5

Thanks..

- 5th grade Math -
**SoccerStar**, Tuesday, March 27, 2012 at 5:06pm
I agree with D.

- 5th grade Math -
**drwls**, Tuesday, March 27, 2012 at 5:07pm
Answer D. Is correct

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