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sweet [91]
3 years ago
5

What part of the circumference is an arc whose measure is 30°?

Mathematics
1 answer:
Radda [10]3 years ago
7 0
Circumference of a circle:
C = 2 r π;
Length of an arc:
L = r π α / 180°
L = r π · 30° / 180° = r π /6
r π /6   :   2 r π = 1/6 : 2 = 1/12
Answer: A ) 1/12 
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