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In the given figure, AB is a chord of a circle with centre O and AB is produced to C such that BC = OB. Also, CO is joined and produced to meet the circle in D. If ∠ACD=25∘ then ∠AOD = ? (a) 50∘ (b) 75∘ (c) 90∘ (d) 100∘ |
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Answer» In the given figure, AB is a chord of a circle with centre O and AB is produced to C such that BC = OB. Also, CO is joined and produced to meet the circle in D. If ∠ACD=25∘ then ∠AOD = ?
(a) 50∘ (b) 75∘ (c) 90∘ (d) 100∘ |
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