The top of a tuna can has a circumference of 6 inches. Which lid will fit the top of the can?
a. 1inch diameter
b. 1 inch radius
c. 2 inches diameter
d. 2 inches radius

Question

The top of a tuna can has a circumference of 6 inches.  Which lid will fit the top of the can?
a. 1inch diameter
b. 1 inch radius
c. 2 inches diameter
d. 2 inches radius

anonymous · Answer

C=pi*d
6=3.14d
6/3.14 = d
1.9 or 2

This is what I got.  Please confirm.

anonymous · Answer

circumference= diametr * pi or 2* radius* pi

paxpolaris · Answer

that'a correct ... 
c. 2 inches diameter

zepp · Answer

$C=2\pi r=6 \text{in}$

Therefore,

$2 \pi r=6 in\\large r=\frac{6}{2 \pi}\approx0.95$

zepp · Answer

So yes, you answer is right :D

paxpolaris · Answer

yes .. b and c are the same

anonymous · Answer

If its .95 that would be 1 inch, correct?

zepp · Answer

Yes, and that's the radius.

anonymous · Answer

I'm confused.  I chose 2 inch diameter.  Was that not correct?

zepp · Answer

A) and B) are both correct.

anonymous · Answer

it has to be one or the other.  Which is the BEST one?

paxpolaris · Answer

B and C are equivalent ... neither is better than the other

zepp · Answer

B and C, sorry

zepp · Answer

I would say if there's only one answer, this question fails, lol :P