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If the given figure, AB is diameter of t...

If the given figure, AB is diameter of the circle, C and D lie on the semicircle. `angle ABC = 65^(@) and angle CAD = 45^(@)`, find `angle DCA`.

A

`45^@`

B

`25^@`

C

`20^@`

D

none of these

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The correct Answer is:
C
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