Question

Mark (✓) against the correct answer
In the given figure, AOB is a straignt line, ∠AOC = 56° and ∠BOC = x°. The value of x is



(a) 34
(b) 44
(c) 144
(d) 124

Answer 1

$$\begin{gathered} \left(d\right)124 \\ \begin{array}{l}\\ x^0+{56}^0={180}^0(\mathrm{linear}\mathrm{pair})\\ \text{=>}{x}^0={180}^0-{56}^0\\ {\text{=124}}^0\end{array} \\ \text{∴ x=124} \end{gathered}$$