Question

Exactly how many planes contain points J, K, and N? 0 1 2 3

Answer 1

Answer: 1

A plane is uniquely defined by 3 distinct points. Think of a stool with 3 legs. Each part of the leg that makes contact with the ground allows the stool to stay stable. It turns out that that extra 4th leg may make the stool wobbly which is why 3 legs are preferred. 

Answer 2

in geometry, any three points that belong to the same plane are said to be coplanar.

Only 1 plane can contain points J, K and N

As stated above, a plane is made up of three points.

This means that, we can only find all the three points (i.e. point J, point K and point N) at the same time in one plane.

Though the individual points or a maximum of two of the three points can belong to other planes;

However, the three points can only be in one plane at the same time.

Hence, the correction option is (b) 1

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