They are not coplanar because D is not on the same plane.
If you look at the plane made by the front face, it includes points A, B, E, F, J and H. However, C and D are on a different plane made by the back portion of the figure.
There are a lot but when I think of it I think -14+0
14 red 8 blue
88/4 =22
22-14 = 8
I think this if correct
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Answer:
Step-by-step explanation: