Lesson 1

Circumference; diameter: about 60 mm, radius: about 30 mm. Radius; diameter: 120 mm, circumference: about 380 mm. ... (vertically) into rectangles of area 2, 6, and 12 square centimeters. ... A circle with a 12 inch diameter is folded in half and then folded in half again. What is … ................
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