document.write( "Question 294386: One angle of a triangle is 20 degrees. The second angle's measurement is four times the third. What is the measure of the third angle? \n" ); document.write( "
Algebra.Com's Answer #212276 by nerdybill(7384)\"\" \"About 
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One angle of a triangle is 20 degrees. The second angle's measurement is four times the third. What is the measure of the third angle?
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\n" ); document.write( "Sum of the interior angles of any triangle is 180 degrees.
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\n" ); document.write( "Let x = measure of third angle
\n" ); document.write( "and 4x = measure of second angle
\n" ); document.write( "then
\n" ); document.write( "20 + 4x + x = 180
\n" ); document.write( "20 + 5x = 180
\n" ); document.write( "5x = 160
\n" ); document.write( "x = 32 degrees (third angle)\r
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