document.write( "Question 1101838: The measure of the vertex angle of an isosceles triangle is 50 degrees. Find the measure of an exterior angle to one of the base angles of the triangle. \n" ); document.write( "

Algebra.Com's Answer #716449 by josgarithmetic(39620) $\"\"$ $\"About$

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Interior base angle each b
\n" ); document.write( " $\"50%2B2b=180\"$
\n" ); document.write( " $\"25%2Bb=90\"$
\n" ); document.write( " $\"b=90-25\"$
\n" ); document.write( " $\"b=65\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Exterior angle at the base, x.
\n" ); document.write( " $\"x%2Bb=180\"$ , because supplementary
\n" ); document.write( " $\"x=180-b\"$
\n" ); document.write( " $\"x=180-65\"$
\n" ); document.write( " $\"highlight%28x=115%29\"$ \n" ); document.write( "

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