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Question

In the figure (IMAGE)

(a) Is 1

adjacent to 2?

(b) Is AOC
adjacent to AOE?

(c) Do COE and EOD from linear pair?

(d) Are BOD and DOA
supplementary?

(e) is 1 vertically opposite to 4?

(f) What is the vertically opposite angle of 5?


1065742_e50a931820234d72a4796d332dc2539b.PNG

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Solution

In the figure given,
(a) Yes. 1 is adjacent to 2 because arm AO is adjacent to arm OC.

(b) No. >AOC is not adjacent to AOE because AOC is inside AOE.

(c) Yes. COE and EOD form a linear pair because we can see that CD is a straight line.

(d) Yes. BOD and DOA are supplementary angles because angle between them is 180.

(e) Yes. 1 is vertically opposite to 4 because AB and CD are straight lines.

(f) 2+3 are vertically opposite to 5 because AB and DC are straight lines which intersect at O.

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