Prentice Hall Geometry

1-2 Points, Lines, and Planes

Objective

To understand basic terms and postulates of geometry

A Solve It problem demonstrates basics of geometry.
Image Long Description

In this lesson, you will learn basic geometric facts to help you justify your answer to the Solve It.

Essential Understanding Geometry is a mathematical system built on accepted facts, basic terms, and definitions.

In geometry, some words such as point, line, and plane are undefined. Undefined terms are the basic ideas that you can use to build the definitions of all other figures in geometry. Although you cannot define undefined terms, it is important to have a general description of their meanings.


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Table of Contents

Prentice Hall Geometry Chapter 1 Tools of Geometry Chapter 2 Reasoning and Proof Chapter 3 Parallel and Perpendicular Lines Chapter 4 Congruent Triangles Chapter 5 Relationships Within Triangles Chapter 6 Polygons and Quadrilaterals Chapter 7 Similarity Chapter 8 Right Triangles and Trigonometry Chapter 9 Transformations Chapter 10 Area Chapter 11 Surface Area and Volume Chapter 12 Circles Skills Handbook Reference Visual Glossary Selected Answers Index Acknowledgments