Questions
The points form a
a
Parallelogram
b
Square
c
Tetrahedron with equilateral triangle as base
d
rectangle
detailed solution
Correct option is B
Given points are A−1,0,1,B0,1,−1,C1,−1,0,D23,23,23The lengths of the sides AB=1+1+4=6BC=1+4+1=6AC=4+1+1=6 The vertices A, B, C forms an equilateral triangle, and the fourth vertex D does not lies in the plane determined by A, B, CHence, the figure formed by these four vertices is tetrahedron.Talk to our academic expert!
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In the if , B = (3,2,0) and C = (0,1,4) then the length of the median passing through A is
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