Question

Count the number of straight lines and triangles in the following figure ?

• A. 10 straight lines and 34 triangles
• B. 9 straight lines and 34 triangles
• C. 9 straight lines and 36 triangles
• D. 10 straight lines and 36 triangles

Answer 1

The correct option is C 9 straight lines and 36 triangles

Possible straight lines :
1. AC, 2. AG, 3. CG, 4. CH, 5. GB, 6. HB, 7. BD 8. HF,9. AE

Possible triangles are :
1. ABI, 2. AIH, 3. HIJ, 4.IBJ, 5. BJK, 6. BCK, 7. HJL, 8. HLG,9. FGL, 10. CDK, 11.ABH, 12. BJH, 13.AJH,
14.ABJ, 15. HJG, 16. HFG, 17. BCJ, 18. BCD, 19. GJE, 20. CEJ,21.AJG, 22. AEG, 23. ACJ, 24. ACE, 25. BOG, 26. BGH, 27. BLH, 28. BCG, 29. BCH, 30. HCG, 31. HCF, 32. HAC, 33. CGJ, 34. ABG, 35. BHK, 36. ACG