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In Delta ABC, angle B = 90^(@) and BD b...

In `Delta ABC, angle B = 90^(@)` and `BD bot AC`. If AC = 9 cm and AD = 3 cm, then BD is equal to :

A

`2 sqrt (2)` cm

B

`3 sqrt(2)` cm

C

`2 sqrt(3)` cm

D

`3 sqrt(3)` cm

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The correct Answer is:
B
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