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In the figure, ABCD is a rectangle. BD =...

In the figure, ABCD is a rectangle. BD = BE, `angleBED = 40^(@)` and reflex `angleEDA = 260^(@)`. Find `angleCDB`.

A

`10^(@)`

B

`20^(@)`

C

`30^(@)`

D

`40^(@)`

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The correct Answer is:
C
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