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07-03-2019
Mathematics

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The radius of a circle is (7n-21) inches find circumference of the circle in terms of n.

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sameer1bajaj sameer1bajaj

10-03-2019

Answer:

(14n - 42)*pi

Step-by-step explanation:

Circumference is 2 * pi * r. Since r in this case is 7n - 21, you can multiply r by 2 and pi, giving you (14n - 42)*pi

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