Question 10 In the figure, if ∠AOB=90∘ and ∠ABC=30∘, then ∠CAO is equal to (A) 30∘ (B) 45∘ (C) 90∘ (D) 60∘

Question 10 In the figure, if ∠AOB=90∘ and ∠ABC=30∘, then ∠C

1.	Question 10 In the figure, if ∠AOB=90∘ and ∠ABC=30∘, then ∠CAO is equal to (A) 30∘ (B) 45∘ (C) 90∘ (D) 60∘
Answer» Question 10 In the figure, if $∠ A O B = 90^{\circ} a n d ∠ A B C = 30^{\circ}, t h e n ∠ C A O$ is equal to (A) $30^{\circ}$ (B) $45^{\circ}$ (C) $90^{\circ}$ (D) $60^{\circ}$