This puzzle tests not only your observation skills but also your ability to see beyond the obvious. Can you identify hidden shapes within shapes? Are you thinking in two dimensions — or three?

The key to solving this triangle puzzle lies in noticing the smaller triangles that are formed within the larger ones. By taking a closer look at the intersections of the lines, you’ll start to see triangles within triangles. And if you’re thinking in three dimensions, you might even notice that some triangles are formed by overlapping sections of the circle.

As you start to count the triangles, you’ll quickly realize that there are more than just 8. In fact, the correct answer is 13 triangles. Some are small, some are large, but they all add up to create a challenging puzzle that only 10% of people get right on their first try.

This puzzle serves as