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OpenStudy (anonymous):
What is the arc length when Θ = 4 pi over 7 and the radius is 5 cm?
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OpenStudy (anonymous):
@phi
OpenStudy (anonymous):
\(\theta\) is ? what is the situation? do you have a pic? come on, man!
OpenStudy (anonymous):
thats all i have
OpenStudy (anonymous):
is it a circle and \(\theta\) is the angle of the arc subtended?
OpenStudy (anonymous):
idk thats all they gave me
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OpenStudy (mrnood):
the length of an arc is simply r * angle (when angle is in radians) Your angle is 4*pi/7 your radius is 5 length = r * angle
OpenStudy (anonymous):
so 20pi/7
OpenStudy (mrnood):
Yes
OpenStudy (anonymous):
can you help me with another one
OpenStudy (mrnood):
post it separately (and I'm going pretty soon...)
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