How do you know if a shape is a prism?

Related questions

1. What is use of prism in WPF?
2. What is Prism MVVM?
3. Does prism charge to pay bills?
4. What is the use of MVVM pattern in WPF?
5. What is event aggregator WPF?
6. Is Prism app secure?
7. What is Prism application?
8. What is Prism tool?
9. What is the prism framework?
10. What is MVVM in Java?

Tags

1. #sides
2. #usually
3. #exactly
4. #faces
5. #example
6. #which
7. #needs
8. #called
9. #rectangular
10. #height
11. #prism
12. #depth
13. #identical
14. #breadth
15. #triangular
16. #shape