document.write( "Question 1179630: Prove: The area of equilateral triangle XYZ = 1/7 the area of equilateral triangle ABC, where the triangle XYZ is formed by the three segments between the vertices and the one third of its opposite sides of the triangle ABC. \n" ); document.write( "
Algebra.Com's Answer #809208 by ikleyn(52847)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( "This theorem of  Geometry is called  \"One-seventh area triangle\".\r
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\n" ); document.write( "\n" ); document.write( "It is  FAR  ABOVE  elementary school geometry curriculum.\r
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\n" ); document.write( "\n" ); document.write( "About this theorem,  see these links\r
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\n" ); document.write( "\n" ); document.write( "https://en.wikipedia.org/wiki/One-seventh_area_triangle\r
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\n" ); document.write( "\n" ); document.write( "https://en.wikipedia.org/wiki/Routh%27s_theorem\r
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