document.write( "Question 228112: Two angles of a triangle are 20° and 50°. What is the measure of the third angle? \n" ); document.write( "
Algebra.Com's Answer #169430 by nerdybill(7384)\"\" \"About 
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Two angles of a triangle are 20° and 50°. What is the measure of the third angle?
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\n" ); document.write( "Remember, the sum of the three interior angles of any triangle equals 180 degrees.
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\n" ); document.write( "Let x = measure of third angle
\n" ); document.write( "then
\n" ); document.write( "20+50+x = 180
\n" ); document.write( "70+x = 180
\n" ); document.write( "x = 110 degrees
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