24 25 Chapters 1/2 Vocabulary

has no size; length, width, or height. It is represented by a dot and named by a capital letter

• Line
• Ray

• Plane

• Point

set of points which has infinite length but no width or height.

It is named by a lower case, cursive letter or by any two points on it

• curve
• line
• angle
• plane

a flat surface made of points that have infinite length and width but no height.

It is named with three points that are not on the same line or by a capital ‘funny font’ letter

• Line
• Plane
• Circle
• Triangle

points that lie on the same line

• Collinear points
• Divergent points
• Intersecting points
• Parallel points

points that do NOT lie on the same line

• noncollinear

• noncoplanar

• collinear

• coplanar

points that lie on the same plane

• Divergent points

• Noncoplanar points

• Coplanar points
• Collinear points

points that do NOT lie on the same plane

• Collinear points

• Noncollinear points

• Coplanar points

• Noncoplanar points

geometric drawing that uses a limited set of tools, usually a compass and a straightedge

• Sketching

• Construction

• Illustration

• Geometric copy

point that represents the end of a line segment or ray

• starting point
• endpoint
• midpoint
• vertex

part of a line that consists of two points called endpoints and all points between them

• Line segment
• Point
• Line
• Ray