Videos, solutions, games, activities and worksheets to help SAT students review geometric notations.
More SAT Math Lessons
More SAT Test Prep
More Geometry Lessons
The following diagrams show some geometric notations: point, line, line segment, ray, angle, intersecting lines, perpendicular lines, parallel lines. Scroll down the page for examples and solutions.
has no size; its only function is to show position. We use a single capital letter to name a point.
can be used to connect two points. A ine is perfectly straight and continues without end in opposite directions. It has no thickness. We can name a line by picking any two points on the line.
|| The line passing through the
points A and B
is denoted by
Since the length of any line is infinite, we sometimes use part of a line called a line segment.
A ray is part of any line that extends without end in one direction.
|| A ray starting from point A and passing through B is denoted by
A plane has length and width, but no
height, and extends infinitely on all sides.
Geometry Lesson 1 - Building Blocks of Geometry
Introduction to Geometry.
-Understand and identify the undefined terms point, line and plane.
-Define segment, ray, angle, collinear, intersect, intersection and coplaner.
-Investigate postulates about points, lines and planes.
Basic Language and Notation of Geometry
Lines, line segments, rays and points. A little bit about dimensions.
Geometry - Points Lines Planes Space Notation - Part 1 of 2
Intuitive Math Help.
Points, Lines, Line segment, Ray, Plane, Angles
Geometry - Points Lines Planes Space Notation - Part 2 of 2
Intuitive Math Help.
More about angles
Point, Line, Plane
This video explains and demonstrates the fundamental concepts (undefined terms)of geometry: point, line, plane.
Point, Line, Plane, and Space - Geometry Help
Try the free Mathway calculator and
problem solver below to practice various math topics. Try the given examples, or type in your own
problem and check your answer with the step-by-step explanations.
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.