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Which is a counterexample for the conditional statement shown?

If three distinct points lie in a plane, then the points can form a triangle.

User Nikk
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Final answer:

A counterexample to the statement "If three distinct points lie in a plane, then the points can form a triangle" could be three collinear points, which cannot form a triangle despite lying in the same plane.

Step-by-step explanation:

Seeking a counterexample for the conditional statement "If three distinct points lie in a plane, then the points can form a triangle," requires us to find a scenario where three distinct points lie in a plane but do not form a triangle. A counterexample can be three collinear points, meaning they lie on the same straight line. In this case, despite fulfilling the condition that they lie in a plane, these points cannot form a triangle because a triangle requires three non-collinear points that connect to create three straight sides.

To further understand counterexamples, we can refer to other conditionals such as "If it has rained, the ground will be wet." A counterexample in this instance could be if rain fell while a canopy covered the ground, hence the ground being dry despite the rain.

In conclusion, a counterexample disproves a conditional statement by satisfying its premise while failing to meet its conclusion. This reinforces the idea that in a conditional statement, the premise only suggests a possible outcome but does not guarantee it.

User Jbatista
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