1.

In the given figure, lines AB and CD intersect at a point O. The sides CA and OB have been produced to E and F respectively such that ∠OAE = x° and ∠DBF = y°.If ∠OCA = 80°, ∠COA = 40° and ∠BDO = 70° then x° + y° = ?(a) 190°(b) 230°(c) 210°(d) 270°

Answer» In the given figure, lines AB and CD intersect at a point O. The sides CA and OB have been produced to E and F respectively such that ∠OAE = x° and ∠DBF = y°.



If ∠OCA = 80°, ∠COA = 40° and ∠BDO = 70° then x° + y° = ?

(a) 190°

(b) 230°

(c) 210°

(d) 270°


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