document.write( "Question 586384: The coordinates of a square are A(-1,6), B(1,3), C(-1,0), and D(-3,3).\r
\n" ); document.write( "\n" ); document.write( "How would you prove the square to be a square using a coordinate proof (with distance formula, etc.)
\n" ); document.write( "How would you find the area? It cannot be by just counting, some math must be involved (would you use distance formula?)\r
\n" ); document.write( "\n" ); document.write( "Thanks!
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Algebra.Com's Answer #373726 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
Show that the two lines AB and CD are parallel
\n" ); document.write( "Show that AD and BC are parallel.
\n" ); document.write( "Show that AB and AD are perpendicular (form right angles)
\n" ); document.write( "Show that BC and BD are perpendicular (form right angles.
\n" ); document.write( "Show that all the line segments are equal length (sqrt(13) or 3.60555\r
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