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Mathematics 21 Online
OpenStudy (lordhelix8th):

What is the exact circumference of the circle? A. 10π feet B. 20π feet C. 40π feet D. 60π feet

OpenStudy (lordhelix8th):

What is the exact circumference of a circle with a radius of 15 cm? A. cm B. cm C. cm D. cm

OpenStudy (lordhelix8th):

a.60 b. 30. c.15 d.10

rishavraj (rishavraj):

circumference = \[2\pi r \]

OpenStudy (lordhelix8th):

this is for 1

OpenStudy (sissyedgar):

2 = B! bcuz the radius is half of the circle!

OpenStudy (sissyedgar):

I believe 1 = B! the answer is basicly given 2 u!

OpenStudy (xapproachesinfinity):

note that r=10 feet in your problem the circumference is 2pi r

OpenStudy (lordhelix8th):

?3

OpenStudy (xapproachesinfinity):

just follow the same formula my deam radius = diameter/2 you have everything you need at your hand

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