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Mathematics 16 Online
OpenStudy (anonymous):

In a circle, a central angle whose measure is pi/2 radians intercepts an arc whose length is 3pi/2 centimeters. How many centimeters are in the radius of the circle?

OpenStudy (anonymous):

use theta=s/r

OpenStudy (anonymous):

|dw:1336696836100:dw| 3cm

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