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OpenStudy (anonymous):
Geometry help. Anyone?
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OpenStudy (anonymous):
Find the circumference. |dw:1366843948351:dw|
OpenStudy (anonymous):
a. 12pi in. b. 36pi in. c. 24pi in. d. 144pi in.
OpenStudy (anonymous):
the circumference is given by the forumla 2*pi*r in this case the radius is 12, plugging that into the formula yields: 2*12pi = 24pi so C is right
OpenStudy (anonymous):
Oh I see, thanks @AnElephant
OpenStudy (anonymous):
So what if it's a diameter? What is the formula?
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OpenStudy (anonymous):
just divide the diameter by 2 to get the radius then use the formula
OpenStudy (anonymous):
ok got it.
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