Topics
1. Lines and Angles
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United States of America
Grades 9-12

1.01 Introduction to geometric notation

Lesson
Practice
Adaptive
Worksheet

Interactive practice questions

Which of the following describe the same set of points as $\overline{FD}$FD?

Two straight lines intersect at a common point. The first line is labeled with points A, B, E, and G arranged collinearly in that order. The second line is labeled with points C, D, E, and F, also arranged collinearly. The two lines intersect at point E.

Line $DF$DF

A

$DF$DF

B

$\overline{DF}$DF

C

$\overrightarrow{DF}$›‹DF

D
Medium
< 1min

Consider the 3-dimensional diagram below.

Medium
1min

Using the diagram below, select the two options that form a pair of opposite rays.

Medium
< 1min

Which three of the following lines define the same line as Line $CD$CD?

Medium
< 1min
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Outcomes

G.CO.A.1

Know precise definitions of angle, circle, perpendicular line, parallel line, and line segment, based on the undefined notions of point, line, distance along a line, and distance around a circular arc.

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