## Chapter 7 Congruence of Triangles Exercise 7.1

**Question 1: Complete the following statements:****(a) Two line segments are congruent if **__they have the same length__**.(b) Among two congruent angles, one has a measure of 70°; the measure of the other angle is **

__70°__

**.**

(c) When we write ∠A = ∠B, we actually mean

(c) When we write ∠A = ∠B, we actually mean

__m ∠A = m ∠B__

**.**

**Question 2: Give any two real-life examples for congruent shapes.**

Answer:Two real-life examples for congruent shapes are -

Answer:

1. Size of chocolate in the same brand.

2. Size of pens in the same brand.

**Question 3: If ΔABC ≅ ΔFED under the correspondence ABC ↔ FED, write all the corresponding congruent parts of the triangles.**

Answer:

Answer:

**Question 4: If ΔDEF ≅ ΔBCA, write the part(s) of ΔBCA that correspond to**

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