Question

What part of the circumference is an arc whose measure is 30°? 1/12 1/10 1/8 1/6

Answer 1

1/12 because 30 degrees of arc/360 degrees of total circle makes 1/12. To find the length of the arc times 1/12 by the circumference of the circle

Answer 2

30°:360°=1:12
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