Foundations of Geometry Vocabulary Review

A straight path connecting two points and extending beyond the points in both directions.

• Point

• Line

• Segment

• Ray

Tags

CCSS.4.G.A.1

An unproven statement that is based on observations. An educated guess.

• Conjecture

• Opinion

• Congruent

• Plane

A rule that has been proven to be true (using facts that were already known).

• Converse

• Postulate

• Theorem

• Hypothesis

Tags

CCSS.8.G.A.5

Exactly equal in size and shape.

• Point

• Postulate

• Similar

• Congruent

Tags

CCSS.8.G.A.2

A process using facts, definitions, accepted properties & logic to form logical arguments.

• Inductive Reasoning

• Deductive Reasoning

• Guess

• Jump

A statement accepted as true without proof.

• Segment

• Postulate

• Theorem

• Line

Tags

CCSS.HSG.CO.C.9

A judgment or decision reached by reasoning. The "then" part of a conditional statement.

• Hypothesis

• Conclusion

• Inverse

• Contrapositve

Two angles that add up to 180°.

• Complementary

• Supplementary

• Vertical Angles

• Point

Tags

CCSS.7.G.B.5

An exact location. It has no size, only position.

• Point

• Line

• Segment

• Plane

Tags

CCSS.4.G.A.1

The point halfway between two given points.

• Line

• Point

• Midpoint

• Plane

Tags

CCSS.HSG.GPE.B.6