Answer
a) $45^{\circ}$
b) $135^{\circ}$
Work Step by Step
a) Formula to find Complement of an angle:
$90^\circ$ - $X^\circ$
$90^{\circ}$ - $45^{\circ}$ = $45^{\circ}$
b) Formula to find Supplement of an angle:
$180^\circ$ - $X^\circ$
$180^{\circ}$ - $45^{\circ}$ = $135^{\circ}$
