You are cutting out pieces of 8.5 by 11 inch construction paper that have a diameter of 2.5 inches. You have 20 pieces of constr
uction paper. How many circles can you make?
1 answer:
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The original area of a face would be a^2. Now that you added b to the edge, the new area of each face would be (a+b)^2. To find how much the are increased, subtract a^2 from (a+b)^2. So the answer is b(2a+b)