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It is a straight one-dimensional figure having no thickness and extending infinitely in both directions.

• Line

• Plane

• Ray

• Line Segment

It can be defined as a part of a line that has a fixed starting point but no end point. It can extend infinitely in one direction.

• Line

• Ray

• Plane

• Line Segment

It is formed when two distinct points are connected with a straight line.

• Ray

• Line segment

• Point

• Line

It is a figure with no length and width or simply with no dimension.

• Line

• Ray

• Plane

• Point

It is a flat surface that extends infinitely in all directions.

• Point

• Line

• Plane

• Line segment

It is a figure formed by two rays meeting at a common endpoint.

• Two Rays

• Ray

• Line

• Angle

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Which of the mathematical system is need to be proven before it can be accepted as true statement?

• Undefined Terms

• Defined Terms

• Axioms and Postulates

• Theorems

8. The terms of mathematical system that can be defined using undefined terms.

• a. Theorems

• b. Axioms or Postulates

• c. Defined Terms

• d. Undefined terms

9. ______are the statements assumed to be true and no need for further proof. Postulates or axioms are statements that may be used to justify the statements in a proof.

• a. Axioms and Postulates

• b. Defined terms

• c. Theorems

• d. Undefined terms