document.write( "Question 658404: so i hope this is the right section because i have a word problem and i need to build an equation and solve it. here it goes : the sum of the measures of the angles of a triangle is 180 degrees. find the 3 angles of a triangle if one angle is 20 degrees greater than the smallest angle and the third angle is twice the smallest angle. i know the answers are 40, 60 and 80 degrees, and i tried to make an equation but my answers did not match so i am wondering if someone can explain this to me please so i understand how? thanks so much \n" ); document.write( "
Algebra.Com's Answer #410284 by MathTherapy(10552)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "so i hope this is the right section because i have a word problem and i need to build an equation and solve it. here it goes : the sum of the measures of the angles of a triangle is 180 degrees. find the 3 angles of a triangle if one angle is 20 degrees greater than the smallest angle and the third angle is twice the smallest angle. i know the answers are 40, 60 and 80 degrees, and i tried to make an equation but my answers did not match so i am wondering if someone can explain this to me please so i understand how? thanks so much\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let measure of smallest angle be S \n" ); document.write( "Then first angle = S + 20 \n" ); document.write( "Also, third angle = 2S\r \n" ); document.write( "\n" ); document.write( "Since they’re supplementary, then we can say that: \n" ); document.write( "S + S + 20 + 2S = 180 \n" ); document.write( "4S = 180 – 20 \n" ); document.write( "4S = 160 \n" ); document.write( "S, or smallest angle = \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "First angle = S + 20, or 40 + 20, or \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Third angle = 2(40), or \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Send comments and “thank-yous” to “D” at MathMadEzy@aol.com \n" ); document.write( " |