document.write( "Question 246307: In any isosceles triangle two angles are equal. The third angle of a certain isosceles triangle is 12 degrees more than four times the measure of one of the equal angles. Find the measure of one of the equal angles. \n" ); document.write( "
Algebra.Com's Answer #179912 by richwmiller(17219)\"\" \"About 
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a+a+c=180
\n" ); document.write( "c=12+4a
\n" ); document.write( "sub
\n" ); document.write( "2a+12+4a=180
\n" ); document.write( "6a=168
\n" ); document.write( "divide by 2
\n" ); document.write( "3a=84
\n" ); document.write( "a=84/3
\n" ); document.write( "a=28 equal angles
\n" ); document.write( "2a=56
\n" ); document.write( "180-56=124=c third angle
\n" ); document.write( "check
\n" ); document.write( "c=12+4*28=112+12=124
\n" ); document.write( "check\r
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