Practice the AP 7th Class Maths Bits with Answers 4th Lesson Lines and Angles on a regular basis so that you can attempt exams with utmost confidence.

## AP Board 7th Class Maths Bits 4th Lesson Lines and Angles

Multiple Choice Questions :

Question 1.

Union of two rays which has one com¬mon end point is called ________

(A) Line

(B) Ray

(C) Angle

(D) Triangle

Answer:

(C) Angle

Question 2.

If the sum of two angles is 180°, then the angles are called ________

(A) Supplementary

(B) Complementary

(C) Conjugate

(D) Adjacent angles

Answer:

(A) Supplementary

Question 3.

If the sum of two angles is 90°, then the angles are called ________

(A) Supplementary

(B) Complementary

(C) Conjugate

(D) Adjacent angles

Answer:

(B) Complementary

Question 4.

If the sum of ∠P and ∠Q is 360°, then they are called ________

(A) Supplementary

(B) Complementary

(C) Conjugate

(D) Adjacent angles

Answer:

(C) Conjugate

Question 5.

Supplementary angle of 30° is ________

(A) 180°

(B) 150°

(C) 60°

(D) 90°

Answer:

(B) 150°

Question 6.

If the ratio of supplementary angles is 2 : 3, then the angles are ________

(A) 72°, 108°

(B) 60°, 120°

(C) 50°, 130°

(D) 40°, 140°

Answer:

(A) 72°, 108°

Question 7.

Sum of pair of adjacent angles is 180°, then the angles are called ________

(A) Supplementary

(B) Complementary

(C) Linear pair

(D) Adjacent angles

Answer:

(C) Linear pair

Question 8.

A linear pair of angles must be ________ angles.

(A) Supplementary

(B) Complementary

(C) Adjacent angles

(D) Linear pair

Answer:

(C) Adjacent angles

Question 9.

The sum of the angles at a point on the same side of the line is ________

(A) 90°

(B) 360°

(C) 270°

(D) 180°

Answer:

(D) 180°

Question 10.

Linear pair among the following :

(A) 98°, 102°

(B) 120°, 60°

(C) 180°, 90°

(D) 120°, 150°

Answer:

(B) 120°, 60°

Question 11.

Vertically opposite angles are

(A) equal

(B) adjacent angles

(C) linear pair

(D) not equal

Answer:

(A) equal

Question 12.

A line which intersects the two or more straight lines at distinct points is called a / an ________

(A) Angle

(B) Parallel line

(C) Transversal line

(D) Intersecting line

Answer:

(C) Transversal line

Question 13.

Angles in between two parallel lines are called ________

(A) corresponding angles

(B) alternate interior angles

(C) exterior angles

(D) interior angles

Answer:

(D) interior angles

Question 14.

Two angles which are on the same side of transversal, one interior and other exterior but not. adjacent are called ________

(A) corresponding angles

(B) alternate interior angles

(C) alternate exterior angles

(D) interior angles

Answer:

(A) corresponding angles

Question 15.

Exterior angles oil either side of the transversal but not adjacent angles are called ________

(A) corresponding angles

(B) alternate interior angles

(C) alternate exterior angles

(D) interior angles

Answer:

(C) alternate exterior angles

Question 16.

Interior angles on same side of a transversal are called ________

(A) corresponding angles

(B) interior angles

(C) co-exterior angles

(D) co-interior angles

Answer:

(D) co-interior angles

Question 17.

If a transversal intersects two lines in such way that the pair of correspond¬ing angles are equal, then the two lines are ________

(A) intersecting lines

(B) parallel lines

(C) transversal lines

(D) none

Answer:

(B) parallel lines

Question 18.

When the co-interior angles are supplementary, then the lines are ________

(A) intersecting lines

(B) parallel lines

(C) transversal lines

(D) none

Answer:

(B) parallel lines

Question 19.

Examples for linear pair of angles in our surroundings ________

(A) pen stand

(B) electrical pole

(C) tree

(D) all of the above

Answer:

(D) all of the above

Question 20.

Number of transversal lines can be drawn two distinct lines are ________

(A) 1

(B) 2

(C) infinite

(D) none

Answer:

(C) infinite

Question 21.

From the adjacent figure ∠p = ________

(A) 100°

(B)70°

(C) 80°

(D) 60

Answer:

(C) 80°

Question 22.

From the given figure ∠x =________

(A) 60°

(B) 50°

(C) 70°

(D) 90°

Answer:

(A) 60°

Question 23.

If two lines intersect each other, then the number of common points they have ________

(A) 1

(B) 2

(C) 4

(D) infinity

Answer:

Question 24.

Which of the following angle can’t be formed by a normal scissors?

(A) obtuse angle

(B) acute angle

(C) right angle

(D) straight angle

Answer:

(A) 1

Question 25.

In the following figure,

∠x + ∠z = ________

(A) 20°

(B) 40°

(C) 160°

(D) 80°

Answer:

(B) 40°

Fill in the blanks :

Question 1.

If the sum of two angles is 360°, then the angles are called ________

Answer:

Conjugate angles

Question 2.

If the sum of ∠A and ∠B is 180°, then they are called ________

Answer:

Supplementary angles

Question 3.

If the sum of ∠X and ∠Y is 90°, then they are called ________

Answer:

Complementary angles

Question 4.

Conjugate angle of 120° is ________

Answer:

240°

Question 5.

Complementary angle of 40° is ________

Answer:

50°

Question 6.

In the ratio of complementary angles is 4 : 5, then the angles are ________

Answer:

40°, 50°

Question 7.

If ∠X and ∠Y are supplementary then ________

Answer:

90°

Question 8.

If the two angles have a common vertex, common arm and lie on either side of the common arm they are called ________

Answer:

adjacent angles

Question 9.

Adjacent angles need not be ________

Answer:

complementary or supplementary

Question 10.

Linear pair of angles are ________

Answer:

supplementary

Question 11.

Adjacent angles need, not be ________

Answer:

linear pair

Question 12.

The sum of all the angles at a point is ________

Answer:

360°

Question 13.

When two straight lines intersect each other, the pair of opposite angles formed at the point of intersection are called ________

Answer:

vertically opposite angles

Question 14.

Angles that are not in between two parallel lines are called ________

Answer:

exterior angles

Question 15.

Interior angles on either side of the transversal but not adjacent angles are called ________

Answer:

alternate interior angles

Question 16.

Exterior angles on same side of transversal are called ________

Answer:

Co-exterior angles

Question 17.

Two coplanar lines which do not intersect at any point are called as ________

Answer:

parallel lines

Question 18.

When a transversal intersect a pair of parallel lines, then the alternate interior angles are ________

Answer:

equal

Question 19.

If the alternate interior angles are equal, then the lines are ________

Answer:

parallel

Question 20.

In the figure the value of x is ________

Answer:

60°

Question 21.

In the figure ∠2 = ∠5, then the lines are ________

Answer:

intersecting lines

Question 22.

Supplementary of an angle is three times the angle, then the angle is

Answer:

60°

Question 23.

From the given figure ∠a: ∠b = 2: 1, then ∠c – ∠d = ________

Answer:

60°

Question 24.

A transversal line intersects two distinct lines in ________ distinct points.

Answer:

two

Question 25.

An angle is double of its supplement, then the measure of the angle is ________

Answer:

60°

Match the following :

Question 1.

Group A | Group B |

1. Sum of Complementary angles | (A) 45° |

2. Sum of Conjugate angles | (B) 90° |

3. Sum of Supplementary angles | (C) 150° |

4. Acute angle | (D) 180° |

5. Obtuse angle | (E) 360° |

Answer:

Group A | Group B |

1. Sum of Complementary angles | (B) 90° |

2. Sum of Conjugate angles | (E) 360° |

3. Sum of Supplementary angles | (D) 180° |

4. Acute angle | (A) 45° |

5. Obtuse angle | (C) 150° |

Question 2.

Group A | Group B |

1. Supplementary angle of 30° is | (A) 240° |

2. Complementary angle of 45° is | (B) 130° |

3. Conjugate of 120° is | (C) 70° |

4. Linear pair of 50° is | (D) 150° |

5. the Corresponding angle of 70° is | (E) 45° |

Answer:

Group A | Group B |

1. Supplementary angle of 30° is | (D) 150° |

2. Complementary angle of 45° is | (E) 45° |

3. Conjugate of 120° is | (A) 240° |

4. Linear pair of 50° is | (B) 130° |

5. the Corresponding angle of 70° is | (C) 70° |

Question 3.

From the adjacent figure,

Group A | Group B |

1. Interior angles | (A) (∠4, ∠5), (∠3, ∠6) |

2. Exterior angles | (B) ∠3, ∠4, ∠5, ∠6 |

3. Corresponding angles | (C) (∠1, ∠7), (∠2, ∠5) |

4. Alternate exterior angles | (D) ∠1, ∠2, ∠7, ∠8 |

5. Co interior angles | (E) (∠1, ∠5), (∠2, ∠5), (∠4, ∠8), (∠3, ∠7) |

Answer:

Group A | Group B |

1. Interior angles | (B) ∠3, ∠4, ∠5, ∠6 |

2. Exterior angles | (D) ∠1, ∠2, ∠7, ∠8 |

3. Corresponding angles | (E) (∠1, ∠5), (∠2, ∠5), (∠4, ∠8), (∠3, ∠7) |

4. Alternate exterior angles | (C) (∠1, ∠7), (∠2, ∠5) |

5. Co interior angles | (A) (∠4, ∠5), (∠3, ∠6) |