Find the number of triangles in the given figure.

28

The logic followed here is;

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

1+2= 03  (AOB) 

1+2= 03  (COD)

1+2= 03  (AOC)

1+2= 03  (BOD) 

1+2= 03  (BLN)

1+2= 03  (OLN)

1+2= 03  (MOP)

1+2= 03  (MCP)

And, the other triangles are;

BON, MOC, AOM, POD

Therefore, there are 03+03+03+03+03+03+03+03+04= 28 triangles in the above figure.