Answer:
1. 22 in
2. 11.304 units
Step-by-step explanation:
Formulas for the circumference are
C = 2πr
C = πd
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1. Put the given numbers in the appropriate formula:
C = 2·(22/7)·(7/2 in) = 22 in
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2. Put the given numbers in the appropriate formula:
C = 3.14·3.6 = 11.304 . . . units
