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If vec(a) = hat(i) + 2hat(j) +2hat(k) ,...

If `vec(a) = hat(i) + 2hat(j) +2hat(k) , |vec(b)| = 5` and the angle between `vec(a) and vec(b)` is `pi/6` , then the area of the triangle formed by these two vectors as two sides is

A

15

B

`(15sqrt(3))/2`

C

`15/2`

D

`15/4`

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The correct Answer is:
B
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