document.write( "Question 162710: Triangle SAB is an isosceles triangle. What is the measure of its vertex angle if the sum of the measures of the base angles is 100? \n" ); document.write( "
Algebra.Com's Answer #119938 by Alan3354(69443)\"\" \"About 
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The sum of the angles in a triangle is 180º. The 3rd angle has to be 180-100, or 80º. \n" ); document.write( "
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