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In triangle ABC, AB=6 sqrt 3 cm, AC=12 c...

In `triangle ABC, AB=6 sqrt 3 cm`, AC=12 cm, BC=6 cm. Find measure of `/_B`

A

` 30 ^(@) `

B

` 60 ^(@) `

C

` 90 ^(@) `

D

` 45 ^(@)`

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The correct Answer is:
A
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