Important MCQs - Triangles | Congruence | CLASS 9 | CBSE | Exam - Made Easy in മലയാളം

Описание: In this video we will solve important exam based multiple choice questions from CBSE CLASS 9 MATHS Chapter 7 - Triangles.

Timestamps:

00:00 Introduction

00:10 Which of the following is not a criterion for congruence of triangles?

00:35 It is given that ΔABC ≅ΔFDE and AB= 5cm, ∠B = 40° and
∠A = 80°. Then which of the following is true?
a)DF=5cm, ∠B = 60° b)DE=5cm, ∠E = 60°

c)DF=5cm, ∠E = 60° d) DE=5cm, ∠D = 40°


02:37 In figure, if AB=DC, ∠ABD =∠CDB, which congruence
rule would you apply to prove ΔABD ≅ΔCDB?



04:16 If ΔACB ≅ ΔEDF, then which of the following equations is/are true?
(I) AC = ED
(II) ∠C = ∠F
(III) AB = EF
(a) Only (I) (b) (I) and (III) (c) (II) and (III) (d) All of these

05:22 ΔLMN is an isosceles triangle such the LM = LN and
∠N = 65⁰. The value of ∠L is:
(a) ∠L = 55⁰ (b) ∠L = 45⁰ (c) ∠L = 50⁰ (d) ∠L = 65⁰


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