document.write( "Question 1170286: A triangle having two sides are equal has a perimeter measuring 40. If the remaining side is 8 less than twice the length of either side. Find the lengths of the 3 sides of the triangle. \n" ); document.write( "

Algebra.Com's Answer #795144 by ikleyn(52788) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "Let x be the length of either of the two congruent sides.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "Then the third side is  (2x-8), and you have this equation for the perimeter\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    x + x + (2x-8) = 40.\r\n" );
document.write( "\r\n" );
document.write( "   \r\n" );
document.write( "From the equation\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "    4x - 8 = 40\r\n" );
document.write( "\r\n" );
document.write( "    4x     = 40 + 8 = 48\r\n" );
document.write( "\r\n" );
document.write( "     x              = 48/4 = 12.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "ANSWER.  The sides are  12 units, 12 units and  2*12-4 = 20 units long.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( "Solved.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "---------------\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "I remember your previous version, mistakenly written.\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Glad that you found and fixed your error.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );