Class 7 Mathematics MCQ Lines And Triangles

With the help of given figure, Answer the following questions:

Question 58: The sum of the measures of two complementary angles is

(A) 180°
(B) 60°
(C) 45°
(D) 90°

Question 59: The measure of the complement of the angle 30° is

(A) 30°
(B) 16°
(C) 60°
(D) 160°

Question 61: Which of the following statements is true?

(A) Two acute angles can be complementary to each other
(B) Two obtuse angles can be complementary to each other
(C) Two right angles can be complementary to each other
(D) One obtuse angle and one acute angle can be complementary to each other

Question 62: The measure of the complement of the angle 46° is

(A) 90°
(B) 46°
(C) 16°
(D) 136°

Question 62: When the sum of the measures of two angles is 90°, the angles are called

(A) supplementary angles
(B) complementary angles
(C) adjacent angles
(D) vertically opposite angles

Question 63: What is the measure of the complement of the angle 80°?

(A) 10°
(B) 100°
(C) 36°
(D) 20°

Question 64: Which pair of the following angles are complementary?
(a)
(b)
(c)
(d)

Question 65: The measure of the angle which is equal to its complement is

(A) 30°
(B)60°
(C) 46°
(D) 90°

Question 66: Which of the following pairs of angles is not a pair of complementary angles?

(A) 60°, 30°
(B) 66°, 34°
(C) 0°, 90°
(D) 160°, 30°

Question 67: What is the measure of the complement of the angle 90°?

(A) 90°
(B) 0°
(C) 180°
(D) 46°

Question 68: When the sum of the measures of two angles is 180°, the angles are called

(A) adjacent angles
(B) complementary angles
(C) vertically opposite angles
(D) supplementary angles

Question 69: The sum of the measures of two supplementary angles is

(A) 90°
(B) 180°
(C) 360°
(D) none of these

Question 70: The measure of the supplement of the angle 120° is

(A) 30°
(B)45°
(C) 60°
(D) 90°

Question 71: Which of the following statements is true?

(A) Two acute angles can be supplementary.
(B) Two right angles can be supplementary.
(C) Two obtuse angles can be supplementary.
(D) One obtuse angle and one acute angle cannot be supplementary

Question 72: What is the measure of the supplement of the angle 0°?

(A) 45°
(B) 90°
(C) 120°
(D) 180°

Question 73: Which pair of the following angles are not supplementary?
(a)
(b)
(c)
(d)

Question 74: The measure of the supplement of the angle 179° is

(A) 1°
(B) 2°
(C) 3°
(D) 4°

Question 75: Which of the following statements is true?

(A) Two adjacent angles can be complementary.
(B) Two adjacent angles cannot be supplementary
(C) An acute angle cannot be adjacent to an obtuse angles.
(D) Two right angles cannot be adjacent angles

Question 76: The angles in a linear pair are

(A) complementary
(B) supplementary
(C) not adjacent angles
(D) vertically opposite angles

Question 77: Which of the following statements is true?

(A) Two acute angles can form a linear pair.
(B) Two obtuse angles can form a linear pair
(C) Two right angles can form a linear pair
(D) One obtuse angle and one acute angle cannot form a linear pair

Question 78: Which of the following pairs of angles form a linear pair?
(a)
(b)
(c)
(d)

Question 79: The measure of the supplement of the angle 90° is

(A) 45°
(B) 60°
(C) 30°
(D) 90°

Question 80: The measure of the angle which is equal to its supplement is

(A) 30°
(B) 45°
(C) 90°
(D) 60°

Question 81: Which of the following pairs of angles is not a pair of supplementary angles?

(A) 90°, 90°
(B) 32°, 58°
(C) 0°, 180°
(D) 76°, 104°

Question 82: The sum of the measures of the angles in a linear pair is

(A) 90°
(B) 180°
(C) 360°
(D) none of these

Question 83: Which of the following statements is false?

(A) Two vertically opposite angles can be acute
(B) Two vertically opposite angles can be obtuse
(C) Two vertically opposite angles can be right angles
(D) Two vertically opposite angles may be unequal

Question 84: Which of the following statements is false?

(A) When a transversal cuts two parallel lines, each pair of corresponding angles are equal.
(B) When a transversal cuts two parallel lines, each pair of alternate interior angles are equal.
(C) When a transversal cuts two parallel lines, each pair of interior angles on the same side of the transversal are supplementary.
(D) A transversal cuts two parallel lines in three points

Question 85: In the following figure, ∠ AOB and ∠ BOC are

(A) complementary angles
(B) supplementary angles
(C) adjacent angles
(D) none of these

Question 86: In the following figure, reflex ∠ AOB is equal to

(A) 60°
(B) 120°
(C) 300°
(D) 360°

Question 87: Which of the following statements is false?

(A) When a transversal cuts two lines, such that pairs of corresponding angles are equal, then the lines have to be parallel.
(B) When a transversal cuts two lines such that pairs of alternate interior angles are equal, then the lines have to be parallel.
(C) When a transversal cuts two lines such that pairs of interior angles on the same side of the transversal are supplementary, then the lines have to be parallel.
(D) When a transversal cuts two lines such that pairs of interior angles on the same side of the transversal are complementary, then the lines have to be parallel

Question 88: In the following figure, two straight lines AB and CD are intersecting each other at the point 0 and the angles thus formed at 0 are marked, then the value of ∠x – ∠y is

(A) 56°
(B) 118°
(C) 62°
(D) 180°

Question 89: In the following figure, tell which pair of angles are not corresponding angles?

(A) ∠1, ∠ 5
(B) ∠ 2, ∠ 6
(C) ∠ 3, ∠ 7
(D) ∠ 3, ∠ 5

Question 90: See the figure of Q. 32 above. Which pair of angles are alternate interior angles?

(A) ∠ 1, ∠ 5
(B) ∠ 2, ∠ 6
(C) ∠ 3, ∠ 7
(D) ∠ 3, ∠ 5

Question 91: Find the measure of the angle which is half of its supplementary angle?

(A) 60°
(B) 120°
(C) 90°
(D) 45°

Question 92: In the following figure, if ∠ 1 + ∠ 3 = 120°, then ∠ 2 + ∠ 4 is equal to

(A) 60°
(B) 120°
(C) 240°
(D) 80°

Question 93: In the following figure, a transversal cuts two parallel lines l and m at points G and H respectively and the angles thus formed are marked. If ∠ 1 is an acute angle, then, which of the following statements is false?

(A) ∠ 1 + ∠ 2 = 180°
(B) ∠ 2 + ∠ 5 = 180°
(C) ∠ 3 + ∠ 8 = 180°
(D) ∠ 2 + ∠ 6 = 180°

Question 94: In the following figure, a transversal c intersects two parallel lines a and b at A and B respectively and the angles formed at A and B are marked. Tell which of the following pairs of angles need not be equal?

(A) ∠ 1, ∠ 2
(B) ∠1, ∠ 3
(C) ∠ 1, ∠ 5
(D) ∠ 2, ∠ 8

Question 95: Which of the following pairs of angles are not adjacent angles?
(a)
(b)
(c)
(d)

Question 96: Find the measure of the angle which is double of its complementary angle?

(A) 60°
(B) 30°
(c) 45°
(D) 120°

Question 97: In the following figure, if ∠ 1 + ∠ 2 = 100°, then the measure of ∠ 4 is equal to

(A) 50°
(B) 100°
(C) 80°
(D) 130°

Question 98: In the following figure, ∠1 + ∠2 + ∠3 = 230°, then the measure of ∠4 is equal to

(A) 130°
(B) 80°
(C) 65°
(D) 90°

Question 99: In the following figure EF || GH. Then, the measure of ∠x is equal to

(A) 30°
(B) 45°
(C) 60°
(D) 40°

Question 101: In the following figure, l || m. Find the measure of ∠ x.

(A) 60°
(B) 45°
(C) 30°
(D) none of these

Question 102: In the following figure, AB || DG and BC || EF. Also, ∠ ABC = 60°. Then, the measure of ∠ DEF is

(a) 30°
(B) 60°
(C) 45°
(D) 120°.

Question 103: Find the value of x in the following figure, if l || m.

(A) 30°
(B) 45°
(C) 60°
(D) none of these

Question 1: If two adjacent angles are supplementary, they form a ………………

Question 2: The sum of the measures of two angles is 90°, the angles are called ………….. angles.

Question 3: The sum of the measures of two angles is 180°, the angles are called ………… angles.

Question 4: Line segment has ………… end points.

Question 5: Two lines intersect and the vertically opposite angles so formed are ……………….

Question 6: Adjacent angles have a common …………… and a common …………………

Question 7: Line segment has ………… end points.

Question 8: Two angles forming a linear pair are …………….