document.write( "Question 150859This question is from textbook
\n" ); document.write( ": In triangle RST, an exterior angle meaure at T has a measure of 75. If measure of angle R= 2 times the measure of angle S, find the measure of each interior angle of triangle RST. \n" ); document.write( "
Algebra.Com's Answer #110789 by vleith(2983)\"\" \"About 
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The sum of the angles in a triangle is 180.
\n" ); document.write( "The sum of angle T plus the exterior angle at T is also 180 (since the two angles (T and exterior at T) form a straight line).\r
\n" ); document.write( "\n" ); document.write( "Thus, the exterior angle at T equals the sum of the other two interior angles\r
\n" ); document.write( "\n" ); document.write( "Let S be the angle at S, then R = 2S
\n" ); document.write( "The ext
\n" ); document.write( "S+2S = exterior angle T
\n" ); document.write( "3S = 75
\n" ); document.write( "S = 25
\n" ); document.write( "R = 2*25 = 50
\n" ); document.write( "T = 180-75 = 105
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