document.write( "Question 239613: How many scalene triangles have a perimeter of less than 13? \n" ); document.write( "
Algebra.Com's Answer #175823 by solver91311(24713)![]() ![]() You can put this solution on YOUR website! \r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The way you ask the question, an infinite number. However, if you restrict the measures of the sides to the integers, then there is a small finite set of three integer sets such that no set of three has a duplicated integer and the sum of each set is 13.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "For example, 1, 2, and 10 is one such set\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "1, 3, 9\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "and so on. Then\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2, 3, 8\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "2, 4, ...\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "You get the idea. Just be careful not to duplicate any numbers in a set of 3 because if you duplicate, then you no longer have a scalene triangle, you have an isosceles triangle. For example, 3, 5, 5 -- no good.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "John \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " |