Question 9 (i) In the adjoining figure: Is ∠1 adjacent to ∠2?
Yes, in ∠ AOE, OC is common arm.
Question 9 (ii) In the adjoining figure: Is ∠AOC adjacent to ∠AOE?
Question 9 (v) In the adjoining figure: Is ∠1 vertically opposite to ∠ 4?
In the adjoining figure:
(i) Is ∠1 adjacent to ∠2?
(ii) Is ∠AOC adjacent to ∠AOE?
(iii) Do ∠COE and ∠EOD form a linear pair?
(iv) Are ∠BOD and ∠DOA supplementary?
(v) Is ∠1 vertically opposite to ∠4?
(vi) What is the vertically opposite angle of ∠5?