document.write( "Question 465310: using 3 boards of lengths 15 ft, 23 ft, and 30 ft, james laid out a triangular plot. assuming he did not cut the boards, classify the triangle formed.\r
\n" ); document.write( "\n" ); document.write( "obtuse, right, or it cannot be determined from info given or the boards will not form a triangle? \n" ); document.write( "

Algebra.Com's Answer #319815 by richard1234(7193) $\"\"$ $\"About$

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It is a triangle, since 15 + 23 > 30. Since 30^2 > 23^2 + 15^2, it is an obtuse triangle (this follows from the law of cosines). \n" ); document.write( "

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