document.write( "Question 331904: Solve using the five-step problem-solving process. Show all steps necessary to arrive at your solution.\r
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document.write( "The second angle of a triangle is 3 times as large as the first. The third angle is 55° more than the first. Find the measure of the smallest angle.
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Algebra.Com's Answer #237900 by mananth(16946)![]() ![]() You can put this solution on YOUR website! let first angle = x \n" ); document.write( "second angle = 3x \n" ); document.write( "third angle = x+55 \n" ); document.write( ".. \n" ); document.write( "The sum of angles of triangle = 180(deg) \n" ); document.write( "x+3x+x+55=180 \n" ); document.write( "5x+55=180 \n" ); document.write( "add -55 \n" ); document.write( "5x+55-55=180-55 \n" ); document.write( "5x=125 \n" ); document.write( "divide by 5 \n" ); document.write( "5x/5=125/5 \n" ); document.write( "x=25 \n" ); document.write( "first angle 25 deg \n" ); document.write( "second angle = 3x= 75 deg \n" ); document.write( "third angle = x+55 = 25+55=80 deg. \n" ); document.write( "CHECK \n" ); document.write( "80+75+25=180 \n" ); document.write( " |