Find how many triangles are there in the given figure.

23

The logic followed here is;

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

1+2= 03  (BCD) 

And, the other triangles are;

ABC, ALM, ANQ, DFE, LOB, MOC, NOQ, NOR, QOS, ROS, LOM, LNR, MQS, NOB, QOC, NOS, QOR, BDE, MOQ, LON

Therefore, there are 03+20= 23 triangles in the above figure.