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The position vectors of the four angular points of a tetrahedron OABC are (0,0,0),(0,0,2),(0,4,0),(6,0,0) respectively. A point P inside the tetrahedron is at the same distance r from the four plane faces of the tetrahedron. Then the value of 9r is |
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Answer» The position vectors of the four angular points of a tetrahedron OABC are (0,0,0),(0,0,2),(0,4,0),(6,0,0) respectively. A point P inside the tetrahedron is at the same distance r from the four plane faces of the tetrahedron. Then the value of 9r is |
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