Question 830266
Let {{{A}}} be the angle.
{{{C=A-27}}}
Complementary angles sum to 90.
{{{A+C=90}}}
{{{A+A-27=90}}}
{{{2A=117}}}
{{{A=58.5}}}
Then,
{{{C=58.5-27}}}
{{{C=31.5}}}