document.write( "Question 181644: Darla is building a new desk. To make sure she had made a square corner, she measures 9ft. from the corner along one edge and 3 ft. fro mthe corner along the other edge. How long should the diagonal be between those two points if the corner is a right angle? I want to say 12 ft, but I think that is wrong, please help. \n" ); document.write( "
Algebra.Com's Answer #136271 by eperette(173)![]() ![]() ![]() You can put this solution on YOUR website! Pythagorean Theorem: a^2 + b^2 = c^2\r \n" ); document.write( "\n" ); document.write( "the diagonal is always longest side which is always c\r \n" ); document.write( "\n" ); document.write( "(9)^2 + (3)^2 = c^2 \n" ); document.write( "81 + 9 = c^2 \n" ); document.write( "90 = c^2 \n" ); document.write( "sqr(90) = sqr (c^2) \n" ); document.write( "sqr(9*10)= c \n" ); document.write( "sqr(9) * sqr(10) = c \n" ); document.write( "3sqr(10) = c\r \n" ); document.write( "\n" ); document.write( "where sqr means square root \n" ); document.write( " |