document.write( "Question 716758: In an isosceles triangle, the third side is 20% of the length of one of the equal sides. Find the length of each side when the perimeter is 220 ft. \n" ); document.write( "
Algebra.Com's Answer #440005 by checkley79(3341)\"\" \"About 
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X+X+.2X=220
\n" ); document.write( "2.2X=220
\n" ); document.write( "X=220/2.2
\n" ); document.write( "X=100 LENGTH OF THE EQUAL SIDES.
\n" ); document.write( "PROOF:
\n" ); document.write( "100+100+.2*100=220
\n" ); document.write( "100+100+20=220
\n" ); document.write( "220=220
\n" ); document.write( "
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