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ICSE Class X Math 2017 Paper

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Question : 24 of 31
Marks: +1, -0
In the figure given, OO is the centre of the circle. ∠DAE=70∘\angle DAE = 70^{\circ}. Find giving suitable reasons, the measure of:
(i) ∠BCD\angle BCD
(ii) ∠BOD\angle BOD
(iii) ∠OBD\angle OBD
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