document.write( "Question 1057111: Find the radian measure of the largest angle in the triangle with side lengths of 77, 88, and 1313. \n" ); document.write( "
Algebra.Com's Answer #672187 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! Find the radian measure of the largest angle in the triangle with side lengths of 77, 88, and 1313. \n" ); document.write( "--------- \n" ); document.write( "I'll assume you mean 7, 8 & 13 \n" ); document.write( "=== \n" ); document.write( "The largest angle is opposite the longest side. \n" ); document.write( "Use the Cosine Law \n" ); document.write( "13^2 = 7^2 + 8^2 - 2*7*8*cos(C) \n" ); document.write( "cos(C) = 56/112 = 0.5 \n" ); document.write( "C = pi/3 \n" ); document.write( " |