Collinear and Coplanar

Are C, F and I coplanar?

Are F, B, and C coplanar?

Are N, A, F, and B coplanar?

Are H, C, and E coplanar? Use the "Create a plane through 3 points" to determine if they are.

Move point H around the plane. Are the points still coplanar?

Hit the "Refresh" button. Can you create a line through points D and A?

Are E, B, and A collinear?

Are D and A collinear?