Triangles MCQs Mock Test of 10th Class Mathematics

Welcome to your Triangles MCQs Mock Test of 10th Class Mathematics

1. 
1. D and E are respectively the points on the sides AB and AC of a triangle ABC such that AD = 2 cm, BD = 3 cm, BC = 7.5 cm and DE || BC. Then, length of DE (in cm) is
2. 
2. Which of the following triangles have the same side lengths?
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3. Area of an equilateral triangle with side length a is equal to:
4. 
4. If ΔABC ~ ΔDEF and ΔABC is not similar to ΔDEF then which of the following is not true?
5. 
5. D and E are the midpoints of side AB and AC of a triangle ABC, respectively and BC = 6 cm. If DE || BC, then the length (in cm) of DE is:
6. 
6. If ΔABC ~ ΔPQR, BCQR=13 then Undefined control sequence \operatorname is
7. 
7. The diagonals of a rhombus are 16 cm and 12 cm, in length. The side of rhombus in length is
8. 
8. If ΔABC ~ ΔQRP, Undefined control sequence \operatorname, AB = 18 cm and BC = 15 cm, then PR is equal to
9. 
9. Corresponding sides of two similar triangles are in the ratio of 2:3. If the area of small triangle is 48 sq.cm, then the area of large triangle is:
10. 
10. If perimeter of a triangle is 100 cm and the length of two sides are 30 cm and 40 cm, the length of third side will be:
11. 
11. If triangles ABC and DEF are similar and AB=4 cm, DE=6 cm, EF=9 cm and FD=12 cm, the perimeter of triangle is:
12. 
12. If in triangles ABC and DEF,ABDE=BCFD , then they will be similar, if
13. 
13. The height of an equilateral triangle of side 5 cm is:
14. 
14. If ABC and DEF are two triangles and AB/DE=BC/FD, then the two triangles are similar if
15. 
15. Sides of two similar triangles are in the ratio 4: 9. Areas of these triangles are in the ratio
16. 
16. Which of the following are not similar figures?
17. 
17. In triangle ABC, ∠BAC = 90° and AD ⊥ BC. Then
18. 
18. If in two triangles ABC and PQR, AB/QR = BC/PR = CA/PQ, then
19. 
19. In triangles ABC and DEF, ∠B = ∠E, ∠F = ∠C and AB = 3 DE. Then, the two triangles are
20. 
20. It is given that ΔABC ~ ΔPQR, with BC/QR = 1/4 then, ar(ΔPRQ)/ar(ABC) is equal to
21. 
21. It is given that ΔABC ~ ΔDFE, ∠A = 30°, ∠C = 50°, AB = 5 cm, AC = 8 cm and DF = 7.5 cm. Then, the following is true:
22. 
22. If triangle ABC is similar to triangle DEF, then
23. 
23. Which of the following is not a similarity criterion for two triangles?
24. 
24. The ratio of the areas of two similar triangles is equal to
25. 
25. In ∆ABC, AB = 6√3 cm, AC = 12 cm and BC = 6 cm. The angle B is
26. 
26. Values of k for which the quadratic equation 2x² – kx + k = 0 has equal roots is
27. 
27. (x² + 1)² – x² = 0 has
28. 
28. In a rectangle Length = 8 cm, Breadth = 6 cm. Then its diagonal = …
29. 
29. In a rhombus if d1 = 16 cm, d2 = 12 cm, its area will be…
30. 
30. If in two As ABC and DEF, ABDF= BCFE = CAED then
31. 
31. D and E are respectively the points on the sides AB and AC of a triangle ABC such that AD = 2 cm, BD = 3 cm, BC = 7.5 cm and DE || BC. Then, length of DE (in cm) is
32. 
32. In ABC, DE || AB. If CD = 3 cm, EC = 4 cm, BE = 6 cm, then DA is equal to
33. 
33. If ΔABC ~ ΔDEF and ΔABC is not similar to ΔDEF then which of the following is not true?
34. 
34. O is a point on side PQ of a APQR such that PO = QO = RO, then
35. 
35. If in triangles ABC and DEF, ABDE= BCFD, then they will be similar, if
36. 
36. Which of the following equations has 2 as a root?
37. 
37. The rooks of the equation x2 +7x + 10 = 0 are:
38. 
38. The quadratic equation 2x2– 5x+1 = 0 has
39. 
39. In a square of side 10 cm, its diagonal = …
40. 
40. In a rhombus if d1 = 16 cm, d2 = 12 cm, then the length of the side of the rhombus is
41. 
41. O is a point on side PQ of a APQR such that PO = QO = RO, then
42. 
42. In ABC, DE || AB. If CD = 3 cm, EC = 4 cm, BE = 6 cm, then DA is equal to
43. 
43. In a square of side 10 cm, its diagonal = …
44. 
44. In a rectangle Length = 8 cm, Breadth = 6 cm. Then its diagonal = …
45. 
45. In a rhombus if d1 = 16 cm, d2 = 12 cm, its area will be…
46. 
46. In a rhombus if d1 = 16 cm, d2 = 12 cm, then the length of the side of the rhombus is
47. 
47. If in two As ABC and DEF, ABDF=BCFE=CAED, then
48. 
48. It is given that ∆ABC ~ ∆DEF and BCEF=15. Then Undefined control sequence \operatorname is equal to
49. 
49. In ∠BAC = 90° and AD ⊥ BC. A Then

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