Question

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Answer 1

Can you picture a flat surface going through all of those points?

Answer 2

# 1

No, the points A, D, H and G are NOT in the same plane.

A plane is uniquely determined by 3 points. But that fourth point doesn't lie on the plane.

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# 2

Yes all four points lie in the same plane since they all lie on the same face.

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# 3

ABCD is a parallel plane. If you extend both planes, they will never intersect.

Answer 3

Thank you so so so so so much Jim.

Answer 4

you're welcome