document.write( "Question 243994: a triangle has a 13 degree angle and a 65 degree angle. what is the measure of the third angle. \n" ); document.write( "
Algebra.Com's Answer #178616 by kamaldas(6)\"\" \"About 
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Sum of 3 angles of a triangle =180 degrees
\n" ); document.write( "Let the third angle be x degrees
\n" ); document.write( "13+65+x =180
\n" ); document.write( "78+x=180
\n" ); document.write( "x=180-78
\n" ); document.write( "x=102
\n" ); document.write( "The third angle is 102 degrees. \r
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