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Triangle Brain Teaser

If You Can Crack This Triangle Brain Teaser, Congratu-Freakin'-Lations: You're a Genius

Another day, another baffling brain teaser that'll make you want to rip your freakin' hair out. This one hails from Twitter user @jiteshpillaai, who went viral on the social media site after sharing an illustration of a triangle with multiple lines drawn through it and asking his followers a seemingly simple question along with it: how many triangles do you see?

At first glance, the answer may appear easy to come by. Just count each individual triangle, then add up all the different combinations of the small triangles, and be sure to include the big overall shape — right? Well, the brain teaser actually left people pretty darn stumped, as the tweet was flooded with more than 700 comments with answers ranging from four to 45. If there was ever a perfectly appropriate occasion to use the infamous "confused lady" meme, it'd certainly be right now, because it accurately sums up how the internet felt while trying to figure this optical illusion out.

Image Source: Tenor

So, what the heck is the answer? Even though I staunchly thought it was nine, the correct answer is actually — drumroll, please — 18! Here's a visual explanation, in case you're having trouble wrapping your head around this.


Welp, looks like it's time to brush up on my math skills.

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