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People Disagree About How Many Triangles Are In This Brain Teaser — Can You Answer Correctly?

There's only one right answer.

Over the last week, I've seen a version of the following brain teaser a bajillion times on Facebook and Twitter.

How many triangles?
Jon-Michael Poff / BuzzFeed

Despite the fact that it's gone viral several times before, people still can't seem to agree on an answer.

Say?
J @jiteshpillaai

Say?

Reply Retweet Favorite

Some people see only four triangles.

@cecemoneey 4
Lil Will @willsection

@cecemoneey 4

Reply Retweet Favorite

Others see 10 or 12.

@cecemoneey 10
mary @ vampalooza @angelnuII

@cecemoneey 10

Reply Retweet Favorite
@cecemoneey 12
• @Ahhhhhhhhhth

@cecemoneey 12

Reply Retweet Favorite

Still others see 19 or more.

@cecemoneey 19
I'm not serious. Don't fall for it. @TrillJaeden

@cecemoneey 19

Reply Retweet Favorite

There is, however, a definitive answer to the question of how many triangles are in the image.

T-Mobile

Now it's your turn to weigh in.

  1. Jon-Michael Poff / BuzzFeed
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Now that you know how many other people counted the same number as you, it's time to see if you're right. Tap to reveal the correct answer, along with an explanation, below.

Tap to reveal

Click to reveal
Jon-Michael Poff / BuzzFeed

Now challenge your friends and family to see how they do!

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