Triangles MCQ Quiz

30 questions

1. A triangle with sides 3,4,5 is:

   1. equilateral
   2. right-angled
   3. isosceles
   4. always obtuse

2. If two similar triangles have corresponding sides 3 and 4, their scale factor (second to first) is:

   1. 3/4
   2. 4/3
   3. 5/4
   4. 3/5

3. If the corresponding side ratio of two similar triangles is 3:4, their area ratio is:

   1. 3:4
   2. 6:8
   3. 9:16
   4. 7:4

4. A triangle with sides 5,12,13 is:

   1. equilateral
   2. isosceles
   3. right-angled
   4. always obtuse

5. If two similar triangles have corresponding sides 5 and 12, their scale factor (second to first) is:

   1. 5/12
   2. 13/12
   3. 12/5
   4. 5/13

6. If the corresponding side ratio of two similar triangles is 5:12, their area ratio is:

   1. 5:12
   2. 10:24
   3. 27:24:00
   4. 17:12

7. A triangle with sides 6,8,10 is:

   1. equilateral
   2. right-angled
   3. isosceles
   4. always obtuse

8. If two similar triangles have corresponding sides 6 and 8, their scale factor (second to first) is:

   1. 6/8
   2. 10/8
   3. 6/10
   4. 8/6

9. If the corresponding side ratio of two similar triangles is 6:8, their area ratio is:

   1. 6:8
   2. 37:04:00
   3. 12:16
   4. 14:8

10. A triangle with sides 9,12,15 is:

    1. right-angled
    2. equilateral
    3. isosceles
    4. always obtuse

11. If two similar triangles have corresponding sides 9 and 12, their scale factor (second to first) is:

    1. 9/12
    2. 15/12
    3. 9/15
    4. 12/9

12. If the corresponding side ratio of two similar triangles is 9:12, their area ratio is:

    1. 9:12
    2. 18:24
    3. 21:12
    4. 83:24:00

13. A triangle with sides 8,15,17 is:

    1. equilateral
    2. isosceles
    3. right-angled
    4. always obtuse

14. If two similar triangles have corresponding sides 8 and 15, their scale factor (second to first) is:

    1. 8/15
    2. 15/8
    3. 17/15
    4. 8/17

15. If the corresponding side ratio of two similar triangles is 8:15, their area ratio is:

    1. 67:45:00
    2. 8:15
    3. 16:30
    4. 23:15

16. A triangle with sides 7,24,25 is:

    1. equilateral
    2. right-angled
    3. isosceles
    4. always obtuse

17. If two similar triangles have corresponding sides 7 and 24, their scale factor (second to first) is:

    1. 7/24
    2. 25/24
    3. 24/7
    4. 7/25

18. If the corresponding side ratio of two similar triangles is 7:24, their area ratio is:

    1. 7:24
    2. 58:36:00
    3. 14:48
    4. 31:24:00

19. A triangle with sides 9,40,41 is:

    1. equilateral
    2. right-angled
    3. isosceles
    4. always obtuse

20. If two similar triangles have corresponding sides 9 and 40, their scale factor (second to first) is:

    1. 40/9
    2. 9/40
    3. 41/40
    4. 9/41

21. If the corresponding side ratio of two similar triangles is 9:40, their area ratio is:

    1. 107:40:00
    2. 9:40
    3. 19:20
    4. 49:40:00

22. A triangle with sides 12,16,20 is:

    1. right-angled
    2. equilateral
    3. isosceles
    4. always obtuse

23. If two similar triangles have corresponding sides 12 and 16, their scale factor (second to first) is:

    1. 12/16
    2. 20/16
    3. 16/12
    4. 12/20

24. If the corresponding side ratio of two similar triangles is 12:16, their area ratio is:

    1. 148:16:00
    2. 12:16
    3. 24:32:00
    4. 28:16:00

25. A triangle with sides 20,21,29 is:

    1. equilateral
    2. isosceles
    3. right-angled
    4. always obtuse

26. If two similar triangles have corresponding sides 20 and 21, their scale factor (second to first) is:

    1. 20/21
    2. 29/21
    3. 21/20
    4. 20/29

27. If the corresponding side ratio of two similar triangles is 20:21, their area ratio is:

    1. 20:21
    2. 407:21:00
    3. 40:42:00
    4. 41:21:00

28. A triangle with sides 10,24,26 is:

    1. equilateral
    2. right-angled
    3. isosceles
    4. always obtuse

29. If two similar triangles have corresponding sides 10 and 24, their scale factor (second to first) is:

    1. 10/24
    2. 24/10
    3. 26/24
    4. 10/26

30. If the corresponding side ratio of two similar triangles is 10:24, their area ratio is:

    1. 10:24
    2. 109:36:00
    3. 20:48
    4. 34:24:00

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