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By on December 31, 2013, with 24 Comments

Now this is an awesome find for an optical illusion. I know all of you out there absolutely love it when I toss up brain teaser optical illusions, which I’ve vowed to post more of, so I’m going to hook you up with one today that is definitely going to tease your brain. This is a simple optical illusion, but it’s highly effective and not many people will be able to get this one right. I have dubbed this illusion as the “how many triangles optical illusion.” Basically, all you have to do is look at the image and count how many triangles are in the image. Are you ready to give it a shot? If so scroll down and check it out!

How Many Triangles Optical Illusion

© Gianni A. Sarcone, www.archimedes-lab.org. All rights reserved.

After looking at the image, how many triangles were you able to count? Believe it or not, 95% of people will not be able to count the correct amount of triangles in the image. Therefore, I would highly suggest sharing this post with your friends on Facebook and challenging them to count the amount of triangles in the image above. Chances are, they won’t be able to get it right and I bet you will see a lot of different answers. If you liked this optical illusion, you can feel free to give it a positive rating. Also, leave your answer in the comments section and let us know how many triangles you were able to find.


24 Responses
  1. Mary says:

    I see 12 triangles

  2. Aaryash Nayak says:


  3. Carl Fuglein says:

    only 3

  4. Jamie says:

    6 triangles ???

  5. Jamie says:

    Wait no, 9

  6. suzie says:

    i counted 12 triangles.
    Im very curious about the right answer.

  7. TheAngryPenguin says:


  8. Arabella says:

    There are none!

  9. .mau. says:

    there is no real triangle, but there are six fake ones

  10. Pian says:

    So what’s the answer? Initially I found 3, then 6.

  11. dabandit says:

    i’ve got 18 so far

  12. Linda says:

    I can only see 3 white triangles

  13. tecwzrd says:

    I counted 21, anybody get more?

    I see the obvious ones in the circles (two for each circle) 6 in the center and the 3 larger ones cut out from the center.

  14. Adam says:

    I counted 15… what’s the correct answer?

  15. Person says:

    Aah tricky. I only saw 3 at first, now I see 6. The others are in between the white triangles.

  16. Fred says:

    I’d say NONE ! The trangle like shapes morph into the 6-sided forms. But if you count a shape like the white triangle you might also have to count a lot of cake pieces…

  17. bdavidgiants10 says:

    empty space doesn’t count. if the three orange ones in the center count, there are six in the picture, but i believe there are zero.

  18. bdavidgiants10 says:

    actually, nine if the center ones count.

  19. Richard says:

    I think the answer is 6 as the other shapes are not straight edged triangles.

  20. Anna says:

    21 I accounted for?

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