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 Ex 7.1

## 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 Ex 7.1 are the part of NCERT Solutions for Class 7 Maths. Here you can find the NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles Ex 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) Two line segments are congruent if they have the same length.
(b) Among the 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 m A = m B.

### Ex 7.1 Class 7 Maths Question 2.

Give any two real-life examples for congruent shapes.

Solution:

1. Shaving blades of the same packet.

2. 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 with correspondence ABC FED
The corresponding congruent parts of the triangles:

AB FE, BC ED, AC FD, A F, B E, C D

### Ex 7.1 Class 7 Maths Question 4.

If ∆DEF ∆BCA. Write the part of ∆BCA that correspond to
(i)
E
(ii) EF
(iii)
F
(iv) DF

Solution:
Given: ∆DEF ∆BCA
(i)
E C
(iii) EF
CA
(ii)
F A
(iv) DF
BA

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