Answer:
see attached
Explanation:
Given several diagrams showing centroids and various median measures, you want to find the requested unknown measures.
Centroid
The centroid of a triangle divides its medians into parts with the ratio 2:1.
The longer part is 2 times the shorter part, and 2/3 the length of the whole.
The shorter part is 1/2 the longer part, and 1/3 the length of the whole.
The whole is 3 times the length of the shorter part, and 3/2 times the length of the longer part.
These are the relations required to find the unknown lengths in the given figures.