Answer
(d) Complement = $29^{\circ}$, supplement = $119^{\circ}$
Work Step by Step
Given angle = $61^{\circ}$
Complement of $ 61^{\circ}$ = $ 90^{\circ} - 61^{\circ}$ = $29^{\circ}$
(As sum of the measures of complementary angles is 90 degrees, we can find 'one' by subtracting 'other' from $90^{\circ}$ )
Supplement of $ 61^{\circ}$ = $ 180^{\circ} - 61^{\circ}$ = $119^{\circ}$
(As sum of the measures of supplementary angles is 180 degrees, we can find 'one' by subtracting 'other' from $180^{\circ}$)
