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Mathematics 12 Online
OpenStudy (openstudyrocks5*):

Can someone check my answer? (gimme a sec I am lagging a lil)

OpenStudy (openstudyrocks5*):

@k_lynn @BloomLocke367 @iGreen

OpenStudy (irishboy123):

nah ***2***πr

OpenStudy (openstudyrocks5*):

OpenStudy (k_lynn):

When you use the formula with a radius, the circumference formula is \[2\Pi r\]

OpenStudy (anonymous):

^^^

OpenStudy (k_lynn):

Again, the \(\pi\) is 3.14. Multiply \[2 \times 3.14\times Radius\]

OpenStudy (openstudyrocks5*):

78.5

OpenStudy (k_lynn):

Right.

OpenStudy (texaschic101):

yes

OpenStudy (openstudyrocks5*):

Sorry I just didn't know where you got the 2 >.>

OpenStudy (texaschic101):

learn these... if you are looking for circumference of circle given radius, use C = 2 * pi * r if you are given diameter use C = pi * d

OpenStudy (k_lynn):

That's the formula. It's something you'll have to memorize. When the question gives you the radius, you use this circumference formula: \[C=2\times \Pi \times Radius\]When they give you the diameter: \[C=\Pi \times Diameter\]THe two in the first formula is there because the radius is half the diameter, if you multiply by two, you can get the diameter.

OpenStudy (texaschic101):

lol....ditto ^^

OpenStudy (k_lynn):

http://prntscr.com/6x7hg4

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