document.write( "Question 120543: length of 3rd side of triangle. ab=9.5 bc=7 ac=???\r
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document.write( "i am trying to lay out the stringers for a stairway and need to know the length of the one side. the triangles are the stair steps. \n" );
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Algebra.Com's Answer #88423 by scott8148(6628)![]() ![]() You can put this solution on YOUR website! my assumption is that you need the longest side?\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "by Pythagoras, the sum of the squares of the short sides equals the square of the long side\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "x^2=9.5^2+7^2 __ x^2=90.25+49 __ x^2=139.25 __ x=11.80\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "good luck with the stairs \n" ); document.write( " |