The distance between the two feet of a compass is 5cm. If you draw a circle, what is the circumference of the circle______ What is the area of this circle______ .
The circumference is: 3.14 × 5 × 2 = 31.4 (CM), the area is: 3.14 × 5 × 5 = 78.5 (square cm). A: the circumference of this circle is 31.4 cm, which is 78.5 square cm. So the answer is: 31.4 cm; 78.5 square cm
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