Skip to Main Content
This is a free sample lesson. Sign up for Magoosh to get access to over 200 video lessons.

Right Triangles

Can't listen to audio right now? Turn on captions.
Summary
The content provides an in-depth exploration of right triangles, focusing on their properties, the Pythagorean theorem, and strategies for solving related problems efficiently on the GRE exam.
  • Right triangles have one 90-degree angle, with the longest side being the hypotenuse and the other two sides being legs.
  • The Pythagorean theorem, a^2 + b^2 = c^2, is fundamental for solving right triangle problems and only applies to right triangles.
  • Pythagorean triplets are sets of three integers that satisfy the Pythagorean theorem and can significantly speed up problem-solving.
  • Proportional reasoning and scaling down by the greatest common factor can simplify calculations with large numbers before scaling back up to find the solution.
  • Understanding and applying these concepts and strategies can help avoid unnecessary calculations and efficiently solve right triangle problems on the GRE.
Chapters
00:02
Understanding Right Triangles
01:13
The Pythagorean Theorem
06:34
Applying Pythagorean Triplets
08:14
Proportional Reasoning and Simplification

Quiz

Geometry (Not tested on Focus edition)