Foundations of Geometry Vocabulary

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

• Point

• Line

• Segment

• Plane

Tags

CCSS.4.G.A.1

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

• Point

• Line

• Segment

• Ray

Tags

CCSS.4.G.A.1

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 statement accepted as true without proof.

• Segment

• Postulate

• Theorem

• Line

Tags

CCSS.HSG.CO.A.1

Two angles that add up to 180°.

• Complementary

• Supplementary

• Vertical Angles

• Point

Tags

CCSS.7.G.B.5

The point halfway between two given points.

• Line

• Point

• Midpoint

• Plane

Tags

CCSS.HSG.GPE.B.6

A pair of adjacent angles that form a straight line or are formed by intersecting lines.

• Plane

• Linear Pair

• Vertical Angles

• Segment

Tags

CCSS.7.G.B.5

Two rays sharing a common endpoint.

• Line

• Segment

• Plane

• Angle

Tags

CCSS.4.G.A.1

All points between two given points (including the given points themselves).

• Point

• Line

• Segment

• Plane

Tags

CCSS.HSG.CO.A.1