**Lines and
Angles Class 7 Worksheets**

**Lines and Angles Class 7 Worksheets** play a vital role in strengthening the maths
concepts. After studying the concepts of mathematics, revision of **Lines and Angles Class 7 Worksheets** is very important for the students. This
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**Lines and
Angles Class 7 Worksheet 1**

**1. **Match the following with the correct value of *x.*

**2.**Find the unknown angles in each of the following figures.

**3.
**Find an angle which is 15° more than 4 times
the complement of the angle.

**4. **Two supplementary angles are in the ratio of
11 : 4. Find the angles.

**5. **Find the unknown angles in each of the following.

**6.**Find the unknown angles.

**7.
**Two supplementary angles are in the ratio 11 :
7, find the angles.

**8.
**Choose the correct option.

a.
A ray has

i. one fixed point

ii. two fixed points

iii. more than two fixed points

iv. no fixed point

b.
Three or more points lying in one straight line are said to be

i. concurrent

ii. collinear

iii. point

iv. plane

c.
An angle which measures more than 90° but less than 180° is known as

i. obtuse angle

ii. acute angle

iii. reflex angle

iv. right angle

d.
Measure of a reflex angle A is

i. 0 < A < 90°

ii. 90° < A < 180°

iii. 180° < A < 270°

iv.
180° < A < 360°

e.
If *x *+ 15° and 3*x *+ 15° are complementary angles, then *x *is
equal to

i. 30°

ii. 60°

iii. 15°

iv. 20°

**9.
**State true or false.

a.
If two supplementary angles are in the ratio 7 : 8, then the angles are 84° and
96°.

b.
An angle measuring more than 0° but less than 90° is an obtuse angle.

c.
2/5 of a straight angle is equal to 72°.

d.
Angles at a point add up to 180°.

**10.
**Fill in the blanks.

a.
The complement of the angle 38^{1}/_{2}° is equal to
___________.

b.
Angles 43^{1}/_{2}° and 136^{1}/_{2}° are
___________.

c. A line segment
has ___________ fixed points.

d.
If AB and CD are two non-parallel lines, then they are ___________.

e.
An angle measuring 180° is a ___________ angle.

**Lines and
Angles Class 7 Worksheet 2**

**1. **Find the value of the unknown marked angles in
the following figures.

**2.**Find the value of the unknown marked angles in the following figures.

**3.**Find the unknown values in the given figures.

**4.
**If 7x + 35° and 8*x *− 20° are two
complementary angles, find the angles.

**5.
**A linear pair of angles are 3*x *+ 5° and
*x *+ 35°, find the angles.

**6.
**Arrange the following angles in ascending
order: 1/5 of a straight angle, 3/8 of the supplement of 40° and 1/9 of the
complement of 36°

**7.
**Two complementary angles are 5*x *+ 10°
and 4*x *– 10°, find the angles.

**8.
**Find the supplement of each of the following
angles.

a.
119^{1}/_{2}°

b. 3*x*
+129°

c. 117°

d. 56’42”

**9. **Find the unknown marked angles.

**10.
**Fill in the blanks.

a.
3/5 of the supplement of 105° is an ___________ angle.

b.
A line segment has ___________ end points.

c.
When two or more lines meet at a point, they are said to be ___________.

d.
From a given point infinite number of ___________ can be drawn.

e. Sum of 2/5 of the supplement and 3/5
of the complement of 65° is equal to ___________.

**11.
**Choose the correct option.

a.
The alternate angles made by a transversal with a pair of parallel lines are

i. equal

ii. greater

iii. smaller

iv. none of these

b.
If the co-interior angles between two lines and a transversal are
supplementary, then the lines are

i. collinear

ii. parallel

iii. intersecting

iv. perpendicular

c.
If two lines intersect one another, then the vertically opposite angles are

i. 90°

ii. 180°

iii. unequal

iv. equal

d.
If 2*x*, 3*x *+ 5°, 10*x *and 5*x *+ 15° are the angles at
a point, then *x *is equal to

i. 28°

ii. 20°

iii. 17°

iv. 340°

**12.
**State whether the following statements are
true or false.

a.
A curved line moves in one direction.

b. Vertically
opposite angles of two intersecting lines are always complementary.

c.
A line has length but no breadth.

d.
Out of the two adjacent angles in a straight line if one is 85°, then the other
is 100°.

e.
Two parallel lines are concurrent.

**ANSWERS**

**Worksheet 1**

1. a.
iii b. iv

c. v d. i

e. ii

2. a. x = 110°;
y = 115°; z = 115°

b. x = 70°; y = 15°; z = 275°

c. x = 75°; y = 75°; z = 53°

a
= 105°; b = 75°; c = 128°

3. 75°

4. 132°, 48°

5. a. a = 110°;
b = 70°; c = 70°;

d
= 70°; e = 70°; f = 110°

b. x = 60°; a = 120°; b = 60°; c = 60°

d = 120°; e = 120°; f = 60°

c. b = 50°; c = 110°; d = 70°; e = 50°

6. a. x = 20°;
y = 115°; z = 65°

b. x = 67.5°; y = 112.5°; z = 67.5°

7. 110°; 70°

8. a. i b. ii

c. i d. iv

e. iii

9. a. True b. False

c. True d. False

10. a. 51^{1}/_{2}° b. supplementary

c. two d. intersecting lines

e. straight

**Worksheet 2**

1. a. x = 50°;
y = 30°

b. a = 34°; b = 146°; c = 34°

2. a. x = 120°;
y = 30°; z = 60°; a = 30°

b. x = 75°; y = 62°; z = 118°

c. x = 112°; y = 68°; z = 68°

3. a. x = 18°;
y = 40°; z = 140°

b. x = 92°; y = 104°; z = 110°

4. 70°; 20°

5. 110°; 70°

6. 6°; 36°;
52.5°

7. 60°; 30°

8. a. 60^{1}/_{2}° b. 51° - 3*x*

c. 63°
d. 123’18”

9. a. 40°; 80°;
60°

b. 148°; 148°

c. 119°; 68°; 173°

10. a. 45° (acute) b. two

c. concurrent lines

d. lines e. 61°

11. a. i b. ii

c. iv d. iii

12. a.
False b. False

c. True d. False

e. False

**MCQs Questions for Class 7 Maths**

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**16. ****Symmetry worksheet for class 7**

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