If two circles are concentric then
A) they will have the same area.
B) they will have the same center.g
C) they will have the same radius length, but different length.
D) they will have the same diameter length, but different radius length.
If you'll look at the image attached, you'll see two concentric circles. Two concentric circles have the same center. They do not have the same diameter or radius length because they are two different circles. The answer to your question is B) They will have the same center.
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If two circles are concentric then they will have the same center. They do not have to have the same radius, therefore they will not necessarily be the same size.
