1.

In the given figure, AB and CD are straight lines through the centre O of a circle. If ∠AOC=80∘ and ∠CDE=40∘ , find (i) ∠DCE, (ii) ∠ABC.

Answer»

In the given figure, AB and CD are straight lines through the centre O of a circle. If AOC=80 and CDE=40 , find (i) DCE, (ii) ABC.



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