GMAT Question of the Day

December 5, 2014



Every weekday, GMAT Hacks publishes a realistic GMAT practice question. In general, you'll see Quant problems on Monday, Wednesday, and Friday, and Verbal questions on Tuesday and Thursday. You'll always be able to find them at

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Today's Practice GMAT Question:

An "interior segment" of a polygon is defined as any line segment that can be drawn between two points of a polygon except for the sides of the polygon itself. If polygon P is a regular octagon, how many interior segments does P have?
(A) 20
(B) 28
(C) 36
(D) 48
(E) 56


Click to show answer (opens in new window)


Need more work in this area? Check out the Geometry: Challenge set of (100) practice problems.There is also a full chapter covering Combinations in Total GMAT Math. It includes additional practice problems, as well.

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About the author: Jeff Sackmann has written many GMAT preparation books, including the popular Total GMAT Math, Total GMAT Verbal, and GMAT 111. He has also created explanations for problems in The Official Guide, as well as 1,800 practice GMAT math questions.

Total GMAT Math

The comprehensive guide to the GMAT Quant section. It's "far and away the best study material available," including over 300 realistic practice questions and more than 500 exercises!
Click to read more.