Lesson: Circle Properties

Rate this video: 

Comment on Circle Properties

Brent, can you please help me with the 8th question in Mathbitsnotebook.com. Thanks in advance.
gmat-admin's picture

Question #8 requires a rule regarding cyclic quadrilaterals. These are quadrilaterals that are inscribed in a circle.

For all cyclic quadrilaterals, any two angles that are opposite each other will add to 180 degrees.

So, for question #8, x + 135 = 180 degrees, so x = 45

For the GMAT, you don't need to know anything about cyclic quadrilaterals. So, you can disregard that question.

Sorry, I didn't notice question #8 when I posted the link. I have edited the link accordingly.

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

To watch our videos at faster speeds (e.g., 20% or 50% faster), download this free extension for your Chrome web browser.  

Have a question about this video?

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