Final answer:
The number of triangles depends on the specific situation given.
Step-by-step explanation:
In a triangle, there are three sides and the sum of their angles is 180 degrees. In the given situations:
- There are 3 triangles (since the question states '3 triangles').
- There are no triangles (since the question states 'no triangle').
- There is 1 triangle (since the question states '1 triangle').
- There are 2 triangles (since the question states '2 triangles').
So, the number of triangles depends on the specific situation given.