Lesson 1

Circle A has a diameter of 1 foot. Circle B has a circumference of 1 meter. Which circle is bigger? Explain your reasoning. (1 inch = 2.54 centimeters) Solution. Circle B is bigger. Answers vary. Possible explanation: There are 12 inches in 1 foot. The circumference of Circle A is about 95.8 cm because 1⋅12⋅2.54⋅π≈95.8. ................
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