Question

Mark (✓) against the correct answer
In the given figure, two straight lines AB and CD intersect at a point O and ∠AOC = 50°. Then, ∠BOD = ?



(a) 40°
(b) 50°
(c) 130°
(d) 60°

Answer 1

$$\begin{gathered} \left(\mathrm{b}\right)50° \\ \begin{array}{l}\text{Here,}\angle \text{AOC and}\angle \text{BOD are vertically opposite angles}\text{.}\\ \therefore \angle \text{AOC=}\angle \text{BOD}\\ \text{Given,}\angle {\text{AOC=50}}^0\\ \therefore \angle {\text{BOD=50}}^0\\ \end{array} \end{gathered}$$