document.write( "Question 404921: Find the length of the sides of this triangle. Two sides are equal in length and the third side is 3 centimeters shorter than one and one-half times the length of the equal sides. The perimeter is 28.5 centimeters. \n" ); document.write( "
Algebra.Com's Answer #286140 by Earlsdon(6294)\"\" \"About 
You can put this solution on YOUR website!
Let x = the length of one of the two equal legs of this isosceles triangle.
\n" ); document.write( "The perimeter can be expressed by:
\n" ); document.write( "\"x%2Bx%2B%281.5x-3%29+=+28.5\"cm. Simplify and solve for x.
\n" ); document.write( "\"3.5x-3+=+28.5\"
\n" ); document.write( "\"3.5x+=+31.5\"
\n" ); document.write( "\"x+=+9\"cm.
\n" ); document.write( "
\n" );