document.write( "Question 181671: Two angles in a triangle are equal and their sum is five times the third angle in the triangle. What are the measures of each of the three interior angles? \n" ); document.write( "
Algebra.Com's Answer #136296 by Mathtut(3670)\"\" \"About 
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Two angles in a triangle are equal and their sum is five times the third angle in the triangle. What are the measures of each of the three interior angles?
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\n" ); document.write( "let a, b and c be our angles
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\n" ); document.write( "a=b.........eq 1
\n" ); document.write( "a+b=5c......eq 2
\n" ); document.write( "a+b+c=180...eq 3
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\n" ); document.write( "take a's value from eq 1 and plug it into eq 2.---->b+b=5c-->2b=5c-->c=(2/5)b
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\n" ); document.write( "now take a's value from eq 1 and our new found value of c which is (2/5)b and plug those into eq 3
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\n" ); document.write( "b+b+(2/5)b=180
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\n" ); document.write( "5b+5b+2b=900.........multiplied all terms by 5 to eliminate the fraction
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\n" ); document.write( "12b=900
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\n" ); document.write( "\"highlight%28b=75%29\"degrees
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\n" ); document.write( "\"highlight%28c=%282%2F5%29b=%282%2F5%2975=30%29\"degrees
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