RBSE Solutions for Class 7 Maths Chapter 7 Lines and Angles In Text Exercise is part of RBSE Solutions for Class 7 Maths. Here we have given Rajasthan Board RBSE Class 7 Maths Chapter 7 Lines and Angles In Text Exercise.

Board |
RBSE |

Textbook |
SIERT, Rajasthan |

Class |
Class 7 |

Subject |
Maths |

Chapter |
Chapter 7 |

Chapter Name |
Lines and Angles |

Exercise |
In Text Exercise |

Number of Questions |
14 |

Category |
RBSE Solutions |

## Rajasthan Board RBSE Class 7 Maths Chapter 7 Lines and Angles In Text Exercise

**(Page 91)**

Question 1

Look at the following angles and identify (RBSESolutions.com) whether it is an acute angle, a right angle or an obtuse angle.

Solution:

(i) Obtuse angle

(ii) Right angle

(iii) Acute angle

Question 2

What will be the (RBSESolutions.com) complementary angle of 45°?

Solution:

Let x is the complement of 45°

Then x + 45° = 90°

⇒ x = 90° – 45° = 45°

∴ Complement angle of 45° = 45°

Question 3

Which of the following (RBSESolutions.com) pairs angles are complement angles :

Solution:

(i) 40° + 50° = 90° are complement angles,

(ii) 30° + 50° = 80° 90° not complement angles,

(iii) 75° + 15° = 90° complement angles.

**(Page 92)
**Question 1

Which of the following (RBSESolutions.com) pairs of angles are supplementary.

Solution:

(i) 50° + 130° = 180° supplement angles.

(ii) 105° + 75° = 380° supplement angles.

(iii) 45° + 100° = 145° * 180° not supplement angles.

Question 2

In the given figures you can (RBSESolutions.com) observe two angle placed next to each other. Were else you find two angles placed next toe ach other?

Solution:

Wind mill, Comer of walls.

**(Page 95)**

Question 1

Look at the following (RBSESolutions.com) figures carefully and identify the parallel lines :

Solution:

Parallel lines are (RBSESolutions.com) shown by arrows :

Question 2

Look at the figures given (RBSESolutions.com) below carefully and identify the intersecting lines.

Solution:

intersecting lines (RBSESolutions.com) are shown by arrows.

**Do And Learn**

**(Page 91)**

Question 1

Can two acute angles be (RBSESolutions.com) complementary angles of each other?

Solution:

Yes, two acute angels can be complement to each other if their sum is 90°.

Question 2

Can two obtuse angles be complementary angles of each other?

Solution:

No, two obtuse angles can not be complement to each other because their sum is never 90°.

Question 3

What is the (RBSESolutions.com) complementary angle of a right angle?

Solution:

0° is the complement angle of 90°.

**(Page 95)**

Question 1

How many transversal lines can be drawn for a pair of lines?

Solution:

An infinite number of transversals can be drawn for a pair of lines.

Question 2

If a transversal line is (RBSESolutions.com) drawn on three lines, then how many points of intersection will we get?

Solution:

If a transversal line intersects three straight lines then three points A, B and C will be find.

**(Page 96)**

Question 1

Identify the pairs of angle in (RBSESolutions.com) each figure and write their name.

Solution:

(i) ∠3 and ∠4 are alternate angles.

(ii) ∠7 and ∠8 are alternate angles.

(iii) ∠1 and ∠2 are linear pair.

(iv) ∠5 and ∠6 are internal angles.

(v) ∠9 and ∠10 are corresponding angles.

**(Page 97)**

Question 1

Look at the (RBSESolutions.com) following and answer :

l ॥ m, L Transversal ∠x = ?

(ii)

L_{1}, L_{2} are two lines (RBSESolutions.com) and t is transversal line Is ∠1 = ∠2 ?

Solution:

(i) In figure, l ॥ m and L in a transversal line

∴ ∠x = 70°(altemate angle)

(ii) In figure ∵ L_{1} ≠ L_{2}

∴ ∠1 ≠ ∠2

We hope the RBSE Solutions for Class 7 Maths Chapter 7 Lines and Angles In Text Exercise will help you. If you have any query regarding Rajasthan Board RBSE Class 7 Maths Chapter 7 Lines and Angles In Text Exercise, drop a comment below and we will get back to you at the earliest.

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