NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles Ex 7.1
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| Textbook | NCERT |
| Board | CBSE |
| Category | NCERT Solutions |
| Class | Class 7 |
| Subject | Maths |
| Chapter | Chapter 7 |
| Chapter Name | Congruence of Triangles Ex 7.1 |
| Number of Questions Solved | 4 |
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:
- Two coins or notes of the same denomination.
- 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
- ∠E
- $\overline { EF }$
- ∠F
- $\overline { DF }$
Solution:
- ∠C
- $\overline { CA }$
- ∠A
- $\overline { BA }$
NCERT Solutions for Class 7 Maths Chapter 7 Congruence of Triangles Ex 7.1 PDF
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