SOLUTION:  Given:
Coordinates of △DEA, H is the midpoint
of DA, G is the midpoint of EA.
Prove: DG≅EH
Algebra.Com
Question 1061408:   Given:
Coordinates of △DEA, H is the midpoint
of DA, G is the midpoint of EA.
Prove: DG≅EH 
Answer by ikleyn(52879)   (Show Source): You can put this solution on YOUR website!
 .
It is not true for a general triangle.
It may be true for a specific triangle (for an isosceles triangle).
Where are the coordinates of vertices? I do not see them in the post.
 
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