
Concept explainers
To draw: a sketch showing four points that are not coplanar.

Answer to Problem 12WE
Explanation of Solution
Concept Used:
Coplanar points are those points which lie on the same plane.
Consider the diagram given below:
It is known that the faces of cuboids acts as different planes.
Here, the point A lies on the top face of cuboid, point B lies on the left face of cuboid, point C lies on the bottom face of cuboid, and lastly point D lies on the right face of cuboid.
So, these are four points which lie in four different planes.
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