Solution to the Problem:
There are 11 squares and 20 triangles.
There are 5 small squares: ABDC, DFJG, FJMI, GJNK, JMSN
There are 5 middle-sized squares: BEMG, DISK, GMRP, CFNH, FLQN
There is 1 large square: AESH
In the tiger, the head contains 10 triangles, the body contains 3 triangles, and the tail contains 7 triangles.