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

Here, below you all know about NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles Ex 7.1 Question Answer. I know many of you confuse about finding this Chapter 7 Congruence of Triangles Ex 7.1 Of Class 7 NCERT Solutions. So, Read the full post below and get your solutions.

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

NCERT TEXTBOOK EXERCISES

Question 1. Complete the following statements:

(a) Two line segments are congruent if……..
(b) Among two 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

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

Solution:

1. Two coins or notes of the same denomination.
2. Two keys of the same lock.

Question 3. If ∆ ABC = ∆ FED under the correspondence ABC ↔ FED, write all the corresponding congruent parts of the triangles.

Solution:

Corresponding vertices: A and F; B and E; C and D.
Corresponding sides : $\overline { AB }$ and $\overline { FE }$ ; $\overline { BC }$ and $\overline { EC }$; $\overline { CA }$ and $\overline { DF }$.
Corresponding angles: ∠A and ∠F; ∠B and ∠E; ∠C and ∠D.

Question 4. If ∆ DEF = ∆ BCA, write the part(s) of ∆ BCA that correspond to

1. ∠E
2. $\overline { EF }$
3. ∠F
4. $\overline { DF }$

Solution:

1. ∠C
2. $\overline { CA }$
3. ∠A
4. $\overline { BA }$

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

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