Grade 8 - Mathematical System

They are fundamental concepts that do not have formal definitions but are understood through their use in the system

• Defined Terms

• Undefined Terms

• Postulate

• Theorem

They have specific definitions derived from undefined terms.

• Defined Terms

• Undefined Terms

• Postulate

• Theorem

It is a statement accepted without proof that serve as the foundation for building a geometric system

• Defined Terms

• Undefined Terms

• Postulate

• Theorem

It is a statements that require proof based on postulates and previously established theorems

• Defined Terms

• Undefined Terms

• Postulate

• Theorem

It represents the location in space with no size or dimension

• Point

• Line

• Plane

• Segment

A straight path extending infinitely in both directions without thickness.

• Line

• Segment

• Ray

• Plane

A straight path extending infinitely in one directions and one end point without thickness

• Line

• Segment

• Ray

• Plane

A straight path that have end point in both directions without thickness.

• Line

• Segment

• Ray

• Plane

Which of the following is not an example of a line?

• Thread

• Pencil

• Wall

• Ruler

Which of the following is an undefined Terms?

• Vertical lines

• Angle

• Plane

• Square