Ben and I are currently in charge of Isaac's math homework. Last week in school they talked about shapes. So this week we talked about area and perimeter. He figured it out pretty quickly with squarish shapes, so the last homework included some circles. He started it yesterday and we were reviewing it today...I asked him what the C in Pi*d = C stood for and he said "Cirimeter". While not correct, it sure is a good description.
(While a minor point, we rounded Pi to 3. It's just an approximation not matter how many decimals are used, so why not use zero decimals.)
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