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)\"\" \"About 
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Find the radian measure of the largest angle in the triangle with side lengths of 77​, 88​, and 1313.
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\n" ); document.write( "I'll assume you mean 7, 8 & 13
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\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
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