"98% Fail" - How Many Triangles Are There? Viral Bollywood Puzzle

This problem caught the attention of Bollywood celebs, including Sonam Kapoor, Aditi Rao Hydari, and Diana Penty, after fashion magazine editor Jitesh Pillai tweeted it. How many triangles are there? This is not just a simple test of observational ability. This is a common test question in India, and there is a clever mathematical method to count the triangles quickly and accurately. In the video I explain and prove the formula.

My blog post for this video
https://wp.me/p6aMk-7Xp

How many triangles? When Bollywood celebs tried to solve a math puzzle. April 9, 2018 by Shreya Das.
http://indianexpress.com/article/tren...

Twitter moment how many triangles
  / 983330716846051328  

How to count triangles in this shape trick (this is one of many similar videos that explains the pattern)
   • Видео  

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