 # Grade 7 Lines and Angles Worksheets

### Grade 7 Maths Lines and Angles Multiple Choice Questions (MCQs)

1. If two lines intersect at a point, then the vertically opposite angles are always …………….. .
(a) equal
(b) unequal
(c) supplementary
(d) Complementary
2. Two angles forming a linear pair are ……………… .
(a) equal
(b) supplementary
(c) unequal
(d) Complementary
3. A line that intersects two or more lines at distinct points is called:
(a) Parallel
(b) transversal
(c) intersecting
(d) none of these
4. If two adjacent angles are supplementary, then they form ……………… .
(a) corresponding angles
(b) vertically opposite angles
(c) a linear pair of angles
(d) a ray
5. If two angles are supplementary, then the sum of their measures is ……………… .
(a) 90°
(b) 180°
(c) 360°
(d) 45°
6. If two angles are complementary, then the sum of their measures is ……………. .
(a) 45°
(b) 180°
(c) 90°
(d) 360°
7. If || m, then ˆ 1 = ˆ 2 because they are ……………. ,
(a) corresponding angles
(b) vertically opposite angles
(c) alternate interior angles
(d) supplementary angles 8. If two parallel lines are cut by a transversal, each pair of the corresponding angles are ……………. in measure.
(a) equal
(b) unequal
(c) supplementary
(d) complementary
9. The difference in the measures’ of two complementary angles is 12°. Find the measures of the angles.
(a) 51° and 49°
(b) 51° and 39°
(c) 60° and 30°
(d) 50° and 40°
10. What is the measure of the complement of 41°?
(a) 139°
(b) 49°
(c) 35°
(d) 45°
11. Identify which of the following pairs of angles are complementary?
(a) 65°, 115°
(b) 63°, 27°
(c) 112°, 68°
(d) 130°, 50°
12. Identify which of the following pairs of angles are supplementary?
(a) 80°, 10°
(b) 63°, 27°
(c) 112°, 68°
(d) 45°, 45°
13. Find the angle, which is equal to its complement?
(a) 30°
(b) 25°
(c) 35°
(d) 45°
14. Find the angle, which is equal to its supplement?
(a) 60°
(b) 90°
(c) 180°
(d) none of these
15. The angle which is four times its complement is:
(a) 60°
(b) 30°
(c) 45°
(d) 72°
16. Which pair of following angles are complementary?
(a) 70°, 20°
(b) 75°, 25°
(c) 48°, 52°
(d) 45°, 55°
17. Which pair of following angles are supplementary?
(a) 110°, 50°
(b) 105°, 65°
(c) 50°, 130°
(d) 45°, 45°
18. What is complement of 63°?
(a) 18°
(b) 27°
(c) 30°
(d) 21°
19. Find the supplement of 105°.
(a) 80°
(b) 65°
(c) 75°
(d) 100°
20. Two lines PQ and RS intersect at O. If ˆ POR = 50°, then value of ˆ ROQ is:
(a) 120°
(b) 130°
(c) 90°
(d) 150° ### Grade 7 Maths Lines and Angles Fill In The Blanks

1. Complementary angle of 65° is ………………. .
2. Supplementary angle of 45° is ……………….. .
3. If line AB||CD and LM is transversal, sum of two interior angles on the same side of transversal is equal to ………………… .
4. An angle is formed by the intersection of …………… .
5. If two lines intersect at a point and if one pair of vertically opposite angles arc acute angles, then the other pair of vertically opposite angles are ……………….. .

### Grade 7 Maths Lines and Angles True(T) And False(F)

1. If measure of an angle is 90° then its supplement angle will be greater than 90°.
2. Two obtuse angles form a linear pair.
3. Two acute angles form a linear pair.
4. If two adjacent angles are complementary they form a right angle.
5. Sum of interior angles on the same side of a transversal with two parallel lines is 90°.

### Grade 7 Maths Lines and Angles Very Short Answer Type Questions

1. In the given figures, decide whether a is parallel to b or not. 2. State the property that is used in each of the following statements:
(a) If l || m, then ˆ 4 = ˆ 8
(b) If ˆ 1 = ˆ 7, then l || m
(c) If ˆ 3 + ˆ 8 = 180°, then l || m Find the value of y in each of the following figure if a || b.   