find the circumference of a circle of radius 21 cm (pie= 3.14)
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3
Answer:
131.88 cm
Step-by-step explanation:
Circumference = 2pi*r where r=radius. Plug the numbers given into this equation to get 2*3.14*21=131.88. Add units. I don't know if you have to round but round if the directions tell you to
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2
21 CM circumference is equal to 2 Pi R
2 into 22 by 7 into 21 CM is equal to 132 CM answer
2 into 22 by 7 into 21 CM is equal to 132 CM answer
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