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Vertices Ba n dC of A B C lie along the...

Vertices `Ba n dC` of ` A B C` lie along the line `(x+2)/2=(y-1)/1=(z-0)/4` . Find the area of the triangle given that `A` has coordinates `(1,-1,2)` and line segment `B C` has length 5.

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The correct Answer is:
`sqrt((1775)/(28))` sq. units
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