Lines and Angles Class 7 Worksheets

# Lines and Angles Class 7 Worksheets

## 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 assesses the preparation of the students. Students can assess themselves by its own by solving the Lines and Angles Class 7 Worksheets. Parents and teachers can also assess the students by giving them these Lines and Angles Class 7 Worksheets to solve.

Maths-formula brings such worksheets on lines and angles class 7 for you. By solving these Lines and Angles Class 7 Worksheets, you can increase the understanding of the concepts learnt. These Lines and Angles Class 7 Worksheets are prepared by experienced teachers and subject matter experts. If you can solve the 90% of the questions correctly, it means your preparation is very good.

Thus, let us try to attempt these questions to solve and assess yourself. Parents and teachers can also give these Lines and Angles Class 7 Worksheets to the students to test them. Unit tests can also be prepared by the teachers using these Lines and Angles Class 7 Worksheets.

## 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 3x + 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 381/2° is equal to ___________.

b. Angles 431/2° and 1361/2° 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 8x − 20° are two complementary angles, find the angles.

5. A linear pair of angles are 3x + 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 5x + 10° and 4x – 10°, find the angles.

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

a. 1191/2°

b. 3x +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 2x, 3x + 5°, 10x and 5x + 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.

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. 511/2°        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. 601/2°     b. 51° - 3x

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

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