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OpenStudy (matt6288):
Given a circle with a diameter of 4, what is the circumference?
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OpenStudy (saifoo.khan):
\[Radius = \frac{diameter}{2} = \frac 42 = 2\]
OpenStudy (anonymous):
pi * diameter = circumference pi * 4 = given circle's circumference
OpenStudy (saifoo.khan):
\[Circ = 2 \pi r\] \[2 \pi 2\]
OpenStudy (saifoo.khan):
Use a calc now! :)
OpenStudy (anonymous):
it is 12.56 i think
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OpenStudy (matt6288):
A. 3 pie B.4 pie c.6pie D.8pie
OpenStudy (anonymous):
B
OpenStudy (anonymous):
its b for sure
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