Lesson: Polygons

Rate this video: 

Comment on Polygons

Hi, Can someone explain the solution for the first 650/800 exercise(the pentagram)? My mind refuse absolutly to understand the explanations on the comment section.
gmat-admin's picture

Yes, it's much easier that way ! Thank you Brent !

Hi, could you please help explain the solution to the following question:


gmat-admin's picture

Do we have to know the names of polygons? ex. hexangon?
gmat-admin's picture

To be safe, I'd memorize the following:

5 sides: pentagon
6 sides: hexagon
8 sides: octagon


Add a comment

Brag up your Geometry Mastery

Now that you’ve mastered GMAT Geometry, it’s time to let the world know!

Change Playback Speed

You have the option of watching our videos at various speeds (25% faster, 50% faster, etc). To change the playback speed, click the settings icon on the right side of the video status bar.

Have a question about this video?

Post your question in the Comment section below, and we’ll answer it as fast as humanly possible.

Free “Question of the Day” emails!