document.write( "Question 334228: angle C and angle D are supplementary. the measure of angle D is eight times hte measure of angle C. Find the measure of angle C and the measure of angle D \n" ); document.write( "

Algebra.Com's Answer #240724 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"C%2BD=180\"$
\n" ); document.write( " $\"D=8C\"$
\n" ); document.write( "Substituting into the first equation,
\n" ); document.write( " $\"C%2B8C=180\"$
\n" ); document.write( " $\"9C=180\"$
\n" ); document.write( " $\"C=20\"$ degrees
\n" ); document.write( " $\"D=8%2820%29=160\"$ degrees \n" ); document.write( "

\n" );