What is the area of a triangle whose vertices are at `(3, -1, 2), (1,- 1 , -3)` and `(4, -3, 1)`?

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Q 2319167019.     What is the area of a triangle whose vertices are at
`(3, -1, 2), (1,- 1 , -3)` and `(4, -3, 1)`?
NDA 2010 Paper 1
A

`(sqrt (165))/2` sq units

B

`(sqrt (135))/2` sq units

C

`4` sq unit

D

`2` sq unit

HINT


Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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