How many triangles are there in the given figure

12 14 13 15

13

The logic followed here is; (let's keep in mind the base, means how many triangles are there in the base) 1+2= 03  (GDJ)  1+2= 03  (FDK) And, the other triangles are; ADL, ABC, BCD, BLD, DAB, DFE, EKF Therefore, there are 03+03+07= 13 triangles in the above figure.