In the given figure, O is the centre of a circle in which ∠OBA=20∘

1.	In the given figure, O is the centre of a circle in which ∠OBA=20∘ and ∠OCA=30∘. Then, ∠BOC=? (a) 50∘ (b) 90∘ (c) 100∘ (d) 130∘
Answer» In the given figure, O is the centre of a circle in which $∠ O B A = 20^{\circ} a n d ∠ O C A = 30^{\circ} . Then, ∠ B O C = ?$ (a) $50^{\circ}$ (b) $90^{\circ}$ (c) $100^{\circ}$ (d) $130^{\circ}$

In the given figure, O is the centre of a circle in which ∠OBA=20∘ and ∠OCA=30∘. Then, ∠BOC=? (a) 50∘ (b) 90∘ (c) 100∘ (d) 130∘

Answer»

In the given figure, O is the centre of a circle in which $∠ O B A = 20^{\circ} a n d ∠ O C A = 30^{\circ} . Then, ∠ B O C = ?$

(a) $50^{\circ}$

(b) $90^{\circ}$

(d) $130^{\circ}$