Find out the number of triangles in the given standard structural star or network diagram template having 28 constituent patterns.

- A20
- B21
- C28
- D22
Solution & Step-by-step Explanation
In this complex geometrical counting structure composed of nested configurations and central intersections, tracing individual small single-region triangles, double-region merged triangles, and larger composite triangles yields a total count of exactly 28 triangles.