document.write( "Question 164669: what formula for a perimeter of a sector.eg 120 degree radius 7cm \n" ); document.write( "
Algebra.Com's Answer #121329 by Alan3354(69443)\"\" \"About 
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P = r*angle (angle in radians)
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\n" ); document.write( "120 degs = 2PI/3 radians
\n" ); document.write( "P = 7*2PI/3
\n" ); document.write( "P = apx 14.66 cm
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