How many total triangles are present in below given figure ?

Correct option is B

Let's label the corners of the square as A, B, C, and D in a clockwise direction.

• The intersection point of the diagonals is labeled as E.
• The intersection point of straight line is labeled as F and G.   

Identifying Triangles:

1. Largest Triangles:

• ACB
• BCD
• CDA
• ABD

1. Smaller Triangles:

• AEB
• DEC

        1. Smallest Triangles:  EAF, EFB, EBC, ECG, EGD, EDA    

Total:

There are a total of 8 (small) + 4 (large) = 12 triangles in the image.