Mathematics
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OpenStudy (anonymous):
What is the circumference of a circle with a diameter of 6?
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OpenStudy (anonymous):
divide 6 by 2
OpenStudy (anonymous):
That gives you R
Then go @r*pi
OpenStudy (anonymous):
so 3*2*pi
OpenStudy (anonymous):
Do they want the exact answer>
OpenStudy (anonymous):
Or an estimate?
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OpenStudy (anonymous):
Estimate: 18.84
Exact: 6pi
OpenStudy (anonymous):
^interesting ;)
OpenStudy (anonymous):
The equation for circumference is
\[\pi d\]
where d = diameter
so you have \[6 \pi\]
or roughly 18
OpenStudy (wwe123):
2*pi*r
2*22/7*6/2
132/7
18.85
OpenStudy (anonymous):
Like I said.
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OpenStudy (jiteshmeghwal9):
\[{\color{red}{Circumfrence \space of \space a \space circle=\pi \times diameter}}\]
OpenStudy (jiteshmeghwal9):
\[\color{green}{{3.14}\times6}\]
OpenStudy (anonymous):
\[C = 2\pi r\]
OpenStudy (anonymous):
WE OBVIOUSLY ALREADY HAVE THE ANSWER SO STOP POSTING>
OpenStudy (anonymous):
The answer will depend on the value of pi given you
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OpenStudy (anonymous):
Lol. Sorry for the rage.
OpenStudy (anonymous):
you don't expect to get the same answer when pi = 22/7 as when pi = 3.14 or when pi = 3.142
OpenStudy (anonymous):
OF course not.
But generally in highschool courses they have you use just 3.14
In college they have you use: 3.14159
or 3.1416
OpenStudy (anonymous):
sure
OpenStudy (anonymous):
d = 2r \[\rightarrow C = \pi d\]