Concentric

Concentric objects share the same center, axis or origin. Circles, tubes, cylindrical shafts, disks, and spheres may be concentric to one another. Notice that two objects can have equal radii and be concentric and different. For example, two different meridians of a terrestrial globe are concentric and congruent, their common center is a point that represents the earth center.

 http://en.wikipedia.org/wiki/Concentric

Advertisements
Posted in Uncategorized | Leave a comment