# 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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