Which of the following is/are correct about a \( \mathrm{P} \) tetr...

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Which of the following is/are correct about a
\( \mathrm{P} \) tetrahedron?

W
(a) Centroid of a tetrahedron lies on lines joining any vertex to the centroid opposite face
(b) Centroid of a tetrahedron lies on the lines joining the mid point of the opposite faces
(c) Distance of centroid from all the vertices are equal
(d) None of the above
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