Class |
10 |

Chapter |
Triangles |

Subject |
Math |

Category |
MCQ |

**Class 10 Math Chapter 6 MCQ Question Answer**

** 1. Sides of some triangles are given below. Which of the two triangles are similar? **

**(i) 6 cm, 8 cm, 12 cm (ii) 5 cm, 7 cm, 9 cm. (iii) 3 cm, 4 cm, 6 cm.**

(A) (i) and (ii)

(B) (i) and (iii)

(C) (ii) and (iii)

(D) None of these

**Answer**

**Ans – (B) (i) and (iii)**

** 2. If ratio of the sides of two similar, triangles is 2 : 3, then the ratio of their areas is :**

(A)

(B) 2:3

(C) 4:9

(D) None of these

**Answer**

**Ans – (C) 4:9**

** 3. If areas of two similar triangles are in the ratio 4 : 9, then ratio of their corresponding sides are:**

(A) 2 : 3

(B) 16 : 81

(C) 3 : 2

(D) 4 : 9

**Answer**

**Ans – (A) 2 : 3**

** 4. If areas of two similar triangles are in the ratio 9 : 16, then ratio of their corresponding sides are:**

(A) 81 : 256

(B) 9 : 16

(C) 3 : 4

(D) √3 : √4

**Answer**

**Ans – (C) 3 : 4**

** 5. If the areas of two similar triangles are 36m² and 121 m² respectively, the ratio of there corresponding sides is:**

(A) 11:6

(B) 6:11

(C) 9:11

(D) None of these

**Answer**

**Ans – (B) 6:11**

** 6. If two sides of a right angle triangle are 4 cm and 5 cm, then the hypotenuse of the triangle is of length:**

(A) cm

(B) 3 cm

(C) 9 cm

(D) None of these

**Answer**

**Ans – (A) cm**

** 7. ΔMNL and ΔQPR are similar triangles. In given figure which similarity criterion is used?**

** **

(A) S. S. S.

(B) A. A. A.

(C) S. A. S.

(D) None of these.

**Answer**

**Ans – (C) S. A. S.**

** 8. In the given figure ΔODC ∼ ΔΟΑΒ, ∠ΒΟC = 100°, ∠ODC = 60°, then ∠OAB is equal to:**

** **

(A) 20°

(B) 80°

(C) 60°

(D) 40°

**Answer**

**Ans – (D) 40°**

** 9. Which one pair of the triangulars is not similar triangles ?**

** **

**Answer**

**Ans – (C)**

Also Read |
Class 10 Math NCERT Solution |

Also Read |
Class 10 Important Questions [Latest] |