How many triangles are there in the given figure?

25

The logic followed here is;

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

1+2= 03  (ALM)

1+2= 03  (ADZ)

1+2= 03  (ANP)

1+2= 03  (ABC)

1+2= 03  (CRS)

1+2= 03  (CPQ)

1+2=03  (CZE)

And, the other triangles are;

AZE, ACE, ADE, AUE

Therefore, the number of triangles are 03+03+03+03+03+03+03+04= 25 triangles