Chapter One:  
Tools of Geometry

Geometry   Notes

Chapter  1

Section  1.1
Section  1.2
Section  1.3
Section  1.4
Section  1.5
Section  1.6
Section  1.7

Geometry Contents


Take notes on the following topics.

Section 1-3  Segments, Rays, Parallel lines and Planes

Vocabulary:

Segment (p. 17) A segment is the part of a line consisting of two points, called endpoints, and all points between them.

Ray (p. 17) A ray is the part of a line consisting of one endpoint and all the points of the line on one side of the endpoint.

Opposite rays (p. 18) Opposite rays are collinear rays with the same endpoint. They form a line.

Parallel lines (pp. 18) Two lines are parallel if they lie in the same plane and do not intersect. The symbol || means "is parallel to."

Skew lines (p. 18) Skew lines are lines that do not lie in the same plane.

Parallel planes (p. 19) Parallel planes are planes that do not intersect.