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meerkat18

The correct answer among the choices provided is option D. Undefined terms cannot be used as a proof in geometry. Undefined terms are the words that are not formally defined. The three words in geometry that are not formally defined are point, line, and plane.

JeanaShupp

Answer: D.Undefined Terms

Step-by-step explanation:

The reason in a mathematical proof can be a given information, vocabulary definitions, properties, postulates or previously proved theorems.

But the undefined terms are the terms which used in geometry to define other terms.

Therefore , the undefined terms cannot be used in a mathematical proof .

Hence , D is the correct option.

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