NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles

### NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles Ex 7.1

**NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles** **Exercise 7.1**

Ex 7.1 Class 7 Maths Question 1.

Complete the following statements:

(a) Two line segments are congruent if _______ .

(b) Among the congruent angles, one has a measure of 70°, the measure of the other angle is _______ .

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

Solution:

(a) they have the same length

(b) 70°

(c) m∠A = m ∠B

Ex 7.1 Class 7 Maths Question 2.

Give any two real life examples for congruent shapes.

Solution:

- Sharing blades of the same brand.
- Biscuits of the same packets.

Ex 7.1 Class 7 Maths Question 3.

If ∆ABC ≅ ∆FED under the correspondence ABC ⟷ FED, write all the corresponding congruent parts of the triangles.

Solution:

Given: ∆ABC = ∆FED

and ABC ⟷ FED

Ex 7.1 Class 7 Maths Question 4.

If ∆DEF ≅ ∆BCA. Write the part of ABCA that correspond to

Solution:

Given: ∆DEF ≅ ∆BCA

(i) ∠E ⟷ ∠C

(ii) ∠F ⟷ ∠A

(iii) EF ⟷ ZA

(iv) DF ⟷ BA