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Consider a triangular pyramid ABCD the p...

Consider a triangular pyramid ABCD the position vectors of whone agular points are `A(3,0,1),B(-1,4,1),C(5,3, 2) and D(0,-5,4)` Let G be the point of intersection of the medians of the triangle BCD. The length of the vector `bar(AG)` is

A

`(sqrt(17))`

B

`(sqrt(45))/(3)`

C

`(sqrt(51))/(9)`

D

`(sqrt(59))/(4)`

Text Solution

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The correct Answer is:
(b)
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