Sarthaks Test
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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?

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(i)Yes, in AOE, OC is common arm. 

(ii) No, they have no non-common arms on opposite side of common arm. 

(iii) Yes, they form linear pair. 

(iv) Yes, they are supplementary. 

(v) Yes, they are vertically opposite angles. 

(vi) Vertically opposite angles of 5 is COB. 

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