Geometry Intro Toolkit - Vocabulary Flashcards

Vocabulary-style flashcards covering basic geometry terms from the Geometry Intro Toolkit notes.

point

A location in space with no size or shape.

line

A straight path that extends infinitely in both directions and has no endpoints.

plane

A flat, two-dimensional surface that extends without end in all directions.

angle

A figure formed by two rays that share a common endpoint (the vertex).

segment

The part of a line between two endpoints.

parallel lines

Two lines in the same plane that never intersect.

perpendicular lines

Two lines that intersect to form right angles (90 degrees).

hypotenuse

The longest side of a right triangle, opposite the right angle.

ray

Part of a line that starts at an endpoint and extends infinitely in one direction.

vertex

The common endpoint of two rays that form an angle, or the intersection point of two lines.

adjacent angles

Two angles that share a common vertex and a common side and lie in the same plane without overlapping interiors.