Unit 1: Undefined Terms Geometry Basics

Master geometry's undefined terms: points, lines, planes, and more! Practice definitions and identification.

1. Unit 1 Vocabulary - match the term with its correct definition. Point indicates a location and has no size Line A collection of infinitely many points following a straight path that extends forever in two directions. Plane A flat surface that extends forever in all directions. Contains infinitely many points. Collinear Points that lie on the same line. Coplanar Points that lie on the same plane. 2. Unit 1 Vocabulary - match the term with its correct definition. Segment Part of a line that has two endpoints Ray Part of a line with one endpoint that extends forever in the other direction. Midpoint A point that divides a segment into two congruent segments Bisect To divide into two congruent parts Angle A figure formed by two rays with a common endpoint. #3. Which figure represents a line BA? #4. Name the figure below. #5-6: Use the picture below to answer the following questions. #5. What is the intersection of plane ABC with plane DEF? Line GH Line AD Line CD Line CF #6. What is the intersection of line BG with line GF? Point B Point G Point C Point F