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Intro to Geometry & Lines and Angles

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Summary
The content provides a foundational understanding of geometry concepts crucial for the GRE exam, focusing on lines, angles, and their properties, including the significance of drawing and physically manipulating shapes for better comprehension.
  • Geometry involves the study of shapes, and developing visual skills can enhance understanding, especially through drawing and building shapes.
  • Lines are straight and infinite, with the importance of not confusing straight lines with horizontal or vertical ones.
  • Angles are formed between lines or segments, measured in degrees, and understanding the dynamic nature of angles is essential.
  • Key concepts include line segments, angle bisectors, perpendicular bisectors, and the properties of angles such as supplementary and vertical angles.
  • Parallel lines and the angles formed when intersected by a transversal are discussed, highlighting the equalities and relationships between these angles.
Chapters
00:01
Understanding Geometry and Visual Skills
00:57
Lines and Angles Fundamentals
07:32
Bisectors and Their Properties
09:29
Supplementary and Vertical Angles
13:17
Parallel Lines and Transversals

The GMAT in its current form will be offered through early 2024. Starting on November 7, 2023, a new, shorter version of the exam called the GMAT Focus will become available.

All Geometry lessons apply to the current GMAT only. (The GMAT Focus edition does not test Geometry.)

Please see the lesson "New GMAT Focus Edition Can be Taken Starting November 7, 2023" for more details about the Focus edition

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Geometry (Not tested on Focus edition)