document.write( "Question 987936: The third angle in an isosceles triangle is 1/4 as large as each of the two base angles. Find the measure of each angle. \n" ); document.write( "

Algebra.Com's Answer #608638 by vleith(2983) $\"\"$ $\"About$

You can put this solution on YOUR website!
Let the base angle be x
\n" ); document.write( "The three angles are x, x and x/4
\n" ); document.write( "You know the total of the angles in a triangle is 180\r
\n" ); document.write( "\n" ); document.write( " $\"x%2B+x%2B+x%2F4+=+180\"$
\n" ); document.write( " $\"4x%2F4+%2B+4x%2F4+%2B+x%2F4+=+180\"$
\n" ); document.write( " $\"9x%2F4+=+180\"$
\n" ); document.write( " $\"9x+=+180%2A4\"$
\n" ); document.write( " $\"x+=+%28180%2A4%29%2F9\"$
\n" ); document.write( " $\"x+=+80\"$
\n" ); document.write( "the angles are 80, 80 and 20 \n" ); document.write( "

\n" );