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23-04-2018
Mathematics

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If the diameter of a circle changes from 5 cm to 15 cm, how will the circumference change?
A. Multiplies by 1/3
B. Multiplies by 3
C. Increases by 10
D. Decreases by 10

Please help and give the CORRECT answer. Thanks!

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kierraruddle9 kierraruddle9

23-04-2018

The answer is B. I solved it all out on paper so you can understand how I got it.

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