Posted by **Emily** on Wednesday, March 7, 2007 at 9:00am.

If the radius of a circle is x/6, what's the diameter and circumference?

Diameter = 2*r

Circumference = 2*pi*r

...or...

Circumference = pi*d

Note: I'm using * to mean multiply.

Can you now determine what you need to know with this information?

Not really. I just need to know how you can take the fraction x/6 and multiply it by two. How do you get an answer of 0.3?

## Answer This Question

## Related Questions

- math - how do you find the diameter of a circle if you don't have the radius? ...
- math - Okay. So i'm doing this project for my geometry class about different ...
- Math - Students in Mr. Tandoc's shop class made a circular railroad crossing ...
- Math - Students in Mr.Tandoc's shop class made a circular railroad crossing sign...
- math - The circumference of a circle varies directly from its diameter. If the ...
- Math - 23.What is the approximate circumference of a circle with a radius of 6 ...
- Math - The circumference of a circle varies directly from its diameter. If the ...
- Circumference,Radius, Diameter - The circumference of a circle is 12.56 ...
- Algebra - The circumference of a circle is found by the formula C=pi(d) where d ...
- Math - the ratio of circumference of a circle to its diameter is 22:7. what is ...

More Related Questions