Find the number of triangles in the given figure.

 

The logic followed here is;

(let's keep in mind the base, means how many triangles are there in the base)

1+2= 03  (ABC) 

1+2= 03  (CRD)

1+2= 03  (DRB)

And, the other triangles are;

POQ, LSM, SMT, BCD, ACD, ABD

Therefore, there are 03+03+03+06= 15 triangles in the above figure.