document.write( "Question 567951: please help :
\n" ); document.write( "the measure of a central angle of a sector is 36 degrees. the arc length of the sector is 4pi cm. what is the radius of the circle. \n" ); document.write( "

Algebra.Com's Answer #366818 by josmiceli(19441) $\"\"$ $\"About$

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$\"+36+\"$ degrees is $\"+36%2F360+=+1%2F10+\"$ of a full circle
\n" ); document.write( "Let $\"+C+\"$ = circumference
\n" ); document.write( "The arc length is $\"+4%2Api+\"$ cm
\n" ); document.write( " $\"+4%2Api+=+%281%2F10%29%2AC+\"$
\n" ); document.write( " $\"+C+=+40%2Api+\"$
\n" ); document.write( "The formula is:
\n" ); document.write( " $\"+C+=+2%2Api%2Ar+\"$
\n" ); document.write( " $\"+40%2Api+=+2%2Api%2Ar+\"$
\n" ); document.write( " $\"+r+=+%28+40%2Api+%29+%2F+%28+2%2Api+%29+\"$
\n" ); document.write( " $\"+r+=+20+\"$ cm \n" ); document.write( "

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