The number of triangles in the following diagram
Small triangles = ABF, BFG, CBG, FGJ, CDH, DHI, DEI, HIK, JOL, OLM, KOM, LMN = 12
Medium triangles = ACJ, CEK, CJK, JKN = 4
Big triangle = AEN = 1
Total number of triangles = 12 + 4 +1 = 17
=> Ans - (C)
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