document.write( "Question 818645: The third angle in an isosceles triangle is 20 more than 2 times as large as each of the two base angles. Find the measure of each angle. \n" ); document.write( "

Algebra.Com's Answer #492684 by TimothyLamb(4379) $\"\"$ $\"About$

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A = third angle
\n" ); document.write( "B = either base angle
\n" ); document.write( "---
\n" ); document.write( "2B + A = 180
\n" ); document.write( "A = 2B + 20
\n" ); document.write( "---
\n" ); document.write( "2B + A = 180
\n" ); document.write( "2B + 2B + 20 = 180
\n" ); document.write( "4B = 160
\n" ); document.write( "---
\n" ); document.write( "B = 40 degrees
\n" ); document.write( "A = 100 degrees
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