document.write( "Question 1086304: the coordinates of the two vertices of a triangle are (6,-1) and (-3,7). find the coordinates of the third vertex so that the centroid of the triangle will be at the origin \n" ); document.write( "

Algebra.Com's Answer #700470 by ikleyn(52806) $\"\"$ $\"About$

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document.write( "Let the coordinates of the third vertex be (x,y).\r\n" );
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document.write( "Then the equations for x an y are\r\n" );
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document.write( "6 + (-3) + x = 0,\r\n" );
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document.write( "(-1) + 7 + y = 0.\r\n" );
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document.write( "Which gives x = -3,  y = -6.\r\n" );
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\n" ); document.write( "\n" ); document.write( "On centroid of a triangle see the lesson\r
\n" ); document.write( "\n" ); document.write( " - The Centroid of a triangle is the Intersection point of its medians \r
\n" ); document.write( "\n" ); document.write( "in this site.\r
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