document.write( "Question 478114: how do you find the smallest angle of a triangle with sides 11cm, 13cm and 17cm? \n" ); document.write( "
Algebra.Com's Answer #327608 by robertb(5830)![]() ![]() You can put this solution on YOUR website! The smallest angle should be the one opposite the shortest side, namely the side with length 7.\r \n" ); document.write( "\n" ); document.write( "From the cosine law,\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==> -337 = -442*cos A\r \n" ); document.write( "\n" ); document.write( "==> \n" ); document.write( "\n" ); document.write( "==> A = 40.32 degrees, to 2 decimal places. \n" ); document.write( " |