Question

In the adjoining figure,
(i) Is ∆2 adjacent to ∆1?
A
(ii) Is ∆AOC adjacent to ∆AOE?
(iii) Do ∆COE and ∆EOD form a linear pair?
(iv) Are ∆DOA and ∆BOD supplementary?
(v) is ∆5 vertically opposite to ∆3?
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Answer 1

see explanation

Step-by-step explanation:

: Yes ∠1 and ∠2 are adjacent angles.

ii): No, ∠AOC is not adjacent to ∠AOE [OC and OE do not lie on either side of common arm OA]

iii): Yes, ∠COE and ∠EOD form a linear pair of angles

iv): Yes, ∠BOD and ∠DOA are supplementary. [ + = 180]

v): Yes, ∠1 is vertically opposite to ∠4