Skip To Content
  • Poll badge
  • Quiz badge

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?

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

Some people see only four triangles.

Others see 10 or 12.

Still others see 19 or more.

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

Now it's your turn to weigh in.

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.

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