Answer:
(C)Triangle GCH.
Explanation:
Given a cube with the top face having points A, B, D, C and the bottom face has points E, F, H, G as shown in the attached diagram.
In the Face DCGH
The hypotenuse forms two right triangles: DCH and GCH
Therefore, from the given options, the triangle which has hypotenuse Side CH is Triangle GCH.
The correct option is C.