Answer
$ 160^{\circ}$ is an obtuse angle.
Complement of $ 160^{\circ}$ = $ -70^{\circ}$
Supplement of $ 160^{\circ}$ = $20^{\circ}$
Work Step by Step
$ 160^{\circ}$ is an obtuse angle as angles that measure between $90° $and $180° $ are called obtuse angles.
Complement of $ 160^{\circ}$ = $ 90^{\circ} - 160^{\circ}$ = $ -70^{\circ}$
(As sum of the measures of complementary angles is 90 degrees, we can find 'one' by subtracting 'other' from $90^{\circ}$ )
Supplement of $ 160^{\circ}$ = $ 180^{\circ} - 160^{\circ}$ = $ 20^{\circ}$
(As sum of the measures of supplementary angles is 180 degrees, we can find 'one' by subtracting 'other' from $180^{\circ}$)