Question 888688
Since they're complementary.
{{{A+C=90}}}
The difference in the measure of 2 complementary angles is 40.
{{{A-C=40}}}
Add the two equations together to eliminate {{{C}}}.
{{{A+C+A-C=90+40}}}
{{{2A=130}}}
{{{highlight(A=65)}}}
Then use either equation to find {{{C}}}.
{{{65+C=90}}}
{{{highlight(C=25)}}}