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ABCDEF is a regular polygon .Two poles a...

ABCDEF is a regular polygon .Two poles at C and D are standing vertically and subtend angles of elevation `30^(@)and60^(@)` at A respectively .What is the ratio of the heigth of the pole at C to that of the pole at D ?

A

`1:1`

B

`1:2 sqrt3`

C

`2 sqrt3 :1`

D

`2:sqrt3`

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