document.write( "Question 404876: The perimeter of a square is not more than 80 cm. What is the largest possible area of the square \n" ); document.write( "
Algebra.Com's Answer #286108 by algebra help tutor(6)\"\" \"About 
You can put this solution on YOUR website!
A square has 4 equal sides. Let's use x to represent the length of a side.
\n" ); document.write( "The perimeter is the distance around the square, and since there are 4 sides, the perimeter of the square would be 4x. Let's set up an equation and solve for x.
\n" ); document.write( "80=4x
\n" ); document.write( "/4 /4 Division property of equality
\n" ); document.write( "20=x \r
\n" ); document.write( "\n" ); document.write( "The area of a square is side squared, or x². We know that x=20 so we can substitute and solve for the largest area.
\n" ); document.write( "20²=400. Thus the answer is 400 cm squared.
\n" ); document.write( "
\n" );