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In the given figure ADEC is a cyclic qua...

In the given figure ADEC is a cyclic quadrilateral, CE and AD are extended to meet at B. `angle CAD = 60^(@)` and ` angle CBA= 30^(@). BD = 6 cm and CE = 5sqrt(3) cm`, What is the ratio of `AC : AD` ?

A

`(3)/(4)`

B

`(4)/(5)`

C

`(2sqrt3)/(5)`

D

can't be determined

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The correct Answer is:
A
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