Posted by **Jessi** on Sunday, October 11, 2009 at 1:54pm.

How are the radii of 2 two concentric circles related to the distance between them?

I tried making an equation using their cirmcumferences but I was way off. All I did was subtract the inner circle's circumference from the outer circle's circumference and set it equal to the distance between them and I know that would never work

## Answer This Question

## Related Questions

- geometry - findthe exact area of the region bounded by two concentric circles ...
- geometry - Two circles which are not congruent touch externally. the sum of ...
- GEOMETRY - Two circles with radii a and b touch each other externally . Let c be...
- math - The lengths of the diameters of two concentric circles are 6 and 8. What ...
- trig - Two circles of radii 5 and 3 cm, respectively, intersect at two points. ...
- Maths - I am very greatefull to you if you guide me to solve this problem. Two ...
- GEOMETRY(CIRCLE) - Three circles with different radii have their centers on a ...
- Trigonometry - Two circles, whose radii are 12 inches and 16 inches respectively...
- Geometry - Circles and tangents - Two circles of radius 1 are externally tangent...
- geometry - a target consists of five concentric circles, each with a radius 1 ...

More Related Questions