Answer:
C≈25.13
Solution:
C=2πr=2·π·4≈25.13274
circumference is 25.12
Explanation:
diameter (d) is 2 times the radius. knowing this we can do 2 times 4 = 8. our new diameter is 8. now we plug into equation:
3.14 times 8 = 25.12
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