SOLUTION: Two flat, circular plates are placed on a circular tabletop. The diameter of each plate equals the radius of the tabletop. How many square inches of the tabletop are not covered by

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Question 1145653: Two flat, circular plates are placed on a circular tabletop. The diameter of each plate equals the radius of the tabletop. How many square inches of the tabletop are not covered by the plates? What fraction of the tabletop is covered? Show your work.
Answer by ikleyn(52782) About Me  (Show Source):
You can put this solution on YOUR website!
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Since any two circles are geometrically similar, their areas relate as the squares if their radii.


So, we have two smaller circles, whose areas are 1%2F4 of the area of the big circle.



Therefore, the question about fraction has the answer  1%2F4 + 1%2F4 = 1%2F2.



The question about square inches CAN NOT be answered, since NO ONE dimension is given.