How many triangles are there in the given figure?

17

The logic followed here is;

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

1+2= 03  (AEG) 

1+2= 03  (DQR)

1+2= 03  (CNR) 

1+2= 03  (SOR)

1+2= 03  (TLC)

And, the other triangles are;

AHI & BKJ

Therefore, there are 03+03+03+03+03+02= 17 triangles in the above figure.