How many triangles are there in the figure given below?

8 10 9 11

10

The logic followed here is; (let's keep in mind the base, means how many triangles are there in the base) 1+2= 03  (ABE)  1+2= 03  (HGD) And, the other triangles are; ABF, AGH, FHL, IBF Therefore, there are 03+03+04= 10 triangles in the above figure.