Math 8 Quarter 3 Reviewer

It has length and width but no thickness. It has a flat surface that extends infinitely along its length and width.

• Plane

• Point

• Polygon

• Line

It is a set of points. It has infinite length but no thickness.

• Plane

• Point

• Polygon

• Line

The most basic term of all geometric concepts. It can be modeled by a dot.

• Plane

• Point

• Polygon

• Line

Which of the following statements is TRUE?

• The intersection of two lines is a plane.

• The intersection of a two plane is a point.

• The intersection of a plane and a line is a point.

• The intersection of a line is a segment

What are statements that can only be described and not defined?

• Defined terms

• Theorems

• Undefined terms

• Axioms

A true statement that can be proven deductively.

• Proof

• Postulate

• Theorem

• Defined Terms

Which of the following illustrates reflexive property?

• (𝐴𝐵 + 𝐵𝐶) + 𝐶𝐷 = (𝐴𝐵 + 𝐵𝐶) + 𝐶𝐷

• (𝐴𝐵 + 𝐵𝐶) + 𝐶𝐷 = 𝐴𝐵 + 𝐵𝐶 + 𝐶𝐷

• (𝐴𝐵 + 𝐵𝐶) + 𝐶𝐷 = (𝐵𝐶 + 𝐴𝐵) + 𝐶𝐷

• (𝐴𝐵 + 𝐵𝐶) + 𝐶𝐷 = 𝐶𝐷 + (𝐴𝐵 + 𝐵𝐶)

Which of the following is NOT a property of Mathematical system?

• postulates

• defined terms

• theorems

• conjecture

Which of the following illustrates a commutative axiom?

• 𝑎 (7 + 𝑏) = (𝑎)(7) + (𝑎)(𝑏)

• 4 + 𝑛 = 𝑛 + 4

• 9 + (−9) = 0

• (3 + 𝑛) + 5 = 3 + (𝑛 + 5)

A line which passes through the midpoint of segment at right angles.

• congruent segment

• perpendicular bisector

• line segment

• diagonal