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If the length of an arc is 12 pie inches and the radius of the circle is 10 inches, what is the measure of the arc?
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If the length of an arc is 12 pie inches and the radius of the circle is 10 inches, what is the measure of the arc?

User Shf
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1 Answer

3 votes
find circumference
C=2pir
c=2pi10
c=20pi

circle is 360 degrees
12pi/20pi=x/360
6/10=x/360
3/5=x/360
216=x
answer si 216 degrees
if yo want radians
3/5 was the fraction and 2pi is total so
3/5 times 2pi=6pi/5 radians


216 degrees or 6pi/5 radians
User Userfuser
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