Mathematics
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OpenStudy (anonymous):
For a circle of radius 3 feet, find the arc length s subtended by a central angle of 57 degrees
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OpenStudy (anonymous):
\[\Large s=r \theta\]
s arc length
r radius
\[\Large \theta~=angle\]
OpenStudy (anonymous):
19/40
OpenStudy (anonymous):
you first have to conver the angle to rad how i showed you before
OpenStudy (anonymous):
i dont have a converter
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OpenStudy (anonymous):
is it 19/20
OpenStudy (anonymous):
Are you taking a test?
OpenStudy (anonymous):
so i do 57/360 times 2(3.14)3?
OpenStudy (anonymous):
and yes i am
OpenStudy (anonymous):
Yeah and what do you get, certainly larger than 1 (not 19/20)
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OpenStudy (anonymous):
2.9829999999
OpenStudy (anonymous):
but all my answers on the test are fractions
OpenStudy (anonymous):
Ok so then jsut divide the fractions out and see which one matches
OpenStudy (anonymous):
one of them is 3.8?
OpenStudy (anonymous):
Well pick the answer the answer that gives you 2.982999 when you divide it out
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OpenStudy (anonymous):
there is none they all equal sm else but there is a 3.8
OpenStudy (anonymous):
What are the answer options? Are there units?
OpenStudy (anonymous):
19/40....19/5.....19/20......or 19/10
OpenStudy (anonymous):
Well we've tried it with formula, I say just'go with 19/40