document.write( "Question 118612: The measure of a base angle of an isosceles triangle is 4 times the measure of the vertex angle. Find the measure of the vertex angle. \n" ); document.write( "
Algebra.Com's Answer #86764 by malakumar_kos@yahoo.com(315)\"\" \"About 
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\n" ); document.write( "\n" ); document.write( " The measure of a base angle of an isosceles triangle is 4 times the measure of the vertex angle. Find the measure of the vertex angle\r
\n" ); document.write( "\n" ); document.write( " Let the measure of the vertex angle be = x\r
\n" ); document.write( "\n" ); document.write( " the measure of the base angles will be = 4x\r
\n" ); document.write( "\n" ); document.write( " sum of the angles of a triangle = 180\r
\n" ); document.write( "\n" ); document.write( " x+4x+4x = 180\r
\n" ); document.write( "\n" ); document.write( " 9x =180\r
\n" ); document.write( "\n" ); document.write( " x = 180/9 = 20 deg
\n" ); document.write( " therefore the angles of the triangle are 20 deg ,80 deg &80 deg.\r
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