Answer: How Many Triangles Are in This Picture?

Did you get it right?

This visual puzzle asks you to count all the triangles in the diagram, including the larger ones made from smaller parts.

Answer: How Many Triangles Are in This Picture?

The Answer

The correct answer is: 18.

Here is why

  1. Start by counting the small triangles.
  2. Then count the medium triangles made by combining small sections.
  3. Finally include the large outside triangle and the larger combined triangles. The intended total is 18.

Why people miss it

Most people either count only the obvious small triangles or accidentally skip the larger triangles formed by multiple lines.

What answer did you get before checking?