Introduction to 3DHard
Question
If the vertices of points A,B,C of a tetrahedron ABCD are respectively (1, 2, 3) ; (−1, 2, 3),
(1, −2, 3) and his centroid is (0, 0, 3/2) then co-ordinate of point D are -
(1, −2, 3) and his centroid is (0, 0, 3/2) then co-ordinate of point D are -
Options
A.(1, 2, − 3)
B.(−1, − 2, 3)
C.(−1, − 2, − 3)
D.(0, 0, 0)
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