document.write( "Question 741958: Find the radius of the circle when the central angle is π/2 and the arc length is 3π. \n" ); document.write( "
Algebra.Com's Answer #452232 by Alan3354(69443)\"\" \"About 
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Find the radius of the circle when the central angle is π/2 and the arc length is 3π.
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\n" ); document.write( "arc = angle*r
\n" ); document.write( "r = arc/angle = 3pi/(pi/2)
\n" ); document.write( "r = 6
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