Open in the curiosity app

How Many Triangles Can You Count In This Shape?

Imagine an equilateral triangle that is filled with smaller equilateral triangles that are the same size as one another. Each side of the large equilateral triangle is the length of four sides of the smaller equilateral triangles. How many triangles, large or small, are a part of this diagram in total?

Advertisement
Explore Related Subjects
Cybersecurity
Flying and Gliding Animals
Meteorites
Navy