How many triangles are there in the following figure?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 20.
20 triangles: ABC, ACD, CDF, ABD, AEF, AFG, AEG, ADF, FHI, HIK, IJK, HKJ, HFK, EFK, FGK, AGK, AEK, EGK, EFH, DFG.
Hence, the correct answer is 20.