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Intro to Geometry & Lines and Angles

Mike McGarry
Lesson by Mike McGarry
Magoosh Expert
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Geometry (Not tested on Focus edition)
Summary
The content provides a foundational understanding of geometry, focusing on lines, angles, and their properties, essential for GMAT preparation.
  • Geometry involves the study of shapes, and developing visual skills can enhance understanding.
  • Lines are straight and infinite, and it's crucial not to confuse straight lines with horizontal or vertical ones without explicit information.
  • Angles are formed between two lines or segments, measured in degrees, and understanding their properties, such as being supplementary or congruent, is vital.
  • Bisectors divide angles or segments into two congruent parts, with perpendicular bisectors also being equidistant from the segment's endpoints.
  • Understanding the relationships and properties of parallel lines and the angles formed when they are intersected by a transversal is crucial.
Chapters
00:00
Introduction to Geometry
00:57
Lines and Angles
07:32
Bisectors and Their Properties
09:29
Supplementary and Congruent 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