Answer or Solution : There are totally 16 triangles.
1. Start counting from the small triangles, which are 6 triangles.
2. Now consider combining two triangles. Hence there are 3 large triangles, one per each side.
3. Now take into account, combining three triangles, there are 6 large triangles.
4. Finally the outer large triangle.
5. Hence there are 16 triangles.