document.write( "Question 243646: In an isoscele triangle, the length of one of the equal sides is three times the length of the third side. the perimeter is 21m. find the length of each side. \n" ); document.write( "
Algebra.Com's Answer #178490 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! 2*3X+X=21 \n" ); document.write( "6X=X=21 \n" ); document.write( "7X=21 \n" ); document.write( "X=21/7 \n" ); document.write( "X=3 LENGTH OF THE THIRD SIDE. \n" ); document.write( "3*3=9 ANS. LENGTH OF THE EQUAL SIDES. \n" ); document.write( "PROOF: \n" ); document.write( "2*9+3=21 \n" ); document.write( "18+3=21 \n" ); document.write( "21=21\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |