Question 892072
d = the measure of the angle.
180-d = the supplement of the angle.
90-d = the complement of the angle.


The description means, if (180-d)+(90-d), then this expression is 166 degrees.
{{{highlight_green((180-d)+(90-d)=166)}}}
{{{270-2d=166}}}
{{{-2d=166-270}}}
{{{2d=270-166}}}
{{{d=135-83}}}
{{{highlight(highlight(d=52))}}}


Yes, the complement of 52 degrees is {{{90-52=highlight(38)}}}.