1. (2) 13
CI, AJ, ED, FB, JD, IB, CF, AE, AC, GH, BD, AB, CD
2. (1) 22
→ ACG, GFB, CIH, JHD, AHB, CGD, AOG, GOH, COH, AOC, CAG, CAH, CGH, HAG, GLB, LBD, HLD, GLH, GBD, GHD, HBD, GHB Total number of triangles: 22
3. (3) 7
2 figure square – 5
4 figure square – 2
Total = 7 square