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In the figure given below, O is the cent...

In the figure given below, O is the centre of the circle and Ab is a diameter.
If AC = BC and `angleAOC=72^(@)`. Find:
(i) `angleABC`
(ii) `angleBAD`
(iii) `angleABD`

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The correct Answer is:
`(i) 36^(@) (ii) 36^(@) ( iii) 54^(@)`
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