Find the lengths of the medians of the triangle with vertices A(0,0,6),B(0,4,0)&C(6,0,0).
Here is the link for the answer to your query:
https://www.meritnation.com/ask-answer/question/find-the-lengths-of-the-medians-of-the-triangle-with-verti/introduction-to-three-dimensional-geometry/6300497
https://www.meritnation.com/ask-answer/question/find-the-lengths-of-the-medians-of-the-triangle-with-verti/introduction-to-three-dimensional-geometry/6300497