If a || b and c is the transversal, then the sum of ∠ 5 and ∠ 2 is .
Question 5 Angles, which are both suplementary and vertically opposite are (a) 95∘,85∘ (b) 90∘,90∘ (c) 100∘,80∘ (d) 45∘,45∘