Grade 4 Math · Lines, Angles and Symmetry

Grade 4 Lines, Angles and Symmetry Practice Test

Build Grade 4 Math skills with five 10-question practice tests on lines, rays, line segments, angle types, parallel and perpendicular lines, and symmetry.

Lines, Angles and Symmetry Practice Tests

These Grade 4 Math practice tests help students identify lines, line segments, rays, angle types, and relationships between lines. Students also use lines of symmetry to describe matching halves of shapes.

Skills covered

  • Identifying lines, rays, and line segments
  • Recognizing parallel, intersecting, and perpendicular lines
  • Classifying acute, right, obtuse, and straight angles
  • Using angle measures in degrees
  • Finding lines of symmetry in shapes
  • Applying geometry vocabulary to real-world examples

How to use these practice tests

A line extends forever in both directions, a ray has one endpoint, and a line segment has two endpoints. An acute angle is less than 90 degrees, a right angle is 90 degrees, an obtuse angle is between 90 and 180 degrees, and a straight angle is 180 degrees. A line of symmetry divides a shape into matching mirror halves.

For more Grade 4 Math practice, return to the Grade 4 Math category.

3. Test

Grade 4 Lines, Angles and Symmetry Practice Tests

A 10-question Grade 4 Math practice test on lines, line segments, rays, angle types, parallel and perpendicular lines, and symmetry.

Identify the geometric figure or property, use angle measures when provided, and apply the definition of symmetry.

10 Questions
0/10 Questions0 %
Correct 0
Incorrect 0
Unanswered 10
1. QuestionMultiple choice

Which angle measure is acute?

Please select an answer first.

Correct answer: A

The correct answer is 60°60°.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: 60°60° is less than 90°90°, so it is acute.
  3. Check the choice: The correct choice is 60°60°.

60°60° is less than 90°90°, so it is acute.

2. QuestionMultiple choice

Which angle measure is a right angle?

Please select an answer first.

Correct answer: B

The correct answer is 90°90°.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: A right angle measures exactly 90°90°.
  3. Check the choice: The correct choice is 90°90°.

A right angle measures exactly 90°90°.

3. QuestionMultiple choice

Which angle measure is obtuse?

Please select an answer first.

Correct answer: C

The correct answer is 135°135°.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: 135°135° is greater than 90°90° and less than 180°180°, so it is obtuse.
  3. Check the choice: The correct choice is 135°135°.

135°135° is greater than 90°90° and less than 180°180°, so it is obtuse.

4. QuestionMultiple choice

Which angle measure is a straight angle?

Please select an answer first.

Correct answer: D

The correct answer is 180°180°.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: A straight angle measures exactly 180°180°.
  3. Check the choice: The correct choice is 180°180°.

A straight angle measures exactly 180°180°.

5. QuestionMultiple choice

Which angle measure is less than a right angle?

Please select an answer first.

Correct answer: A

The correct answer is 75°75°.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: 75°75° is less than 90°90°, so it is acute.
  3. Check the choice: The correct choice is 75°75°.

75°75° is less than 90°90°, so it is acute.

6. QuestionMultiple choice

Which angle measure is greater than a right angle but less than a straight angle?

Please select an answer first.

Correct answer: B

The correct answer is 100°100°.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: 100°100° is between 90°90° and 180°180°, so it is obtuse.
  3. Check the choice: The correct choice is 100°100°.

100°100° is between 90°90° and 180°180°, so it is obtuse.

7. QuestionMultiple choice

Which pair of lines forms right angles where they meet?

Please select an answer first.

Correct answer: C

The correct answer is Perpendicular lines.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: Perpendicular lines meet to form right angles.
  3. Check the choice: The correct choice is Perpendicular lines.

Perpendicular lines meet to form right angles.

8. QuestionMultiple choice

Which pair of lines never meets because they remain the same distance apart?

Please select an answer first.

Correct answer: D

The correct answer is Parallel lines.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: Parallel lines remain the same distance apart and never intersect.
  3. Check the choice: The correct choice is Parallel lines.

Parallel lines remain the same distance apart and never intersect.

9. QuestionMultiple choice

What type of angle is angle measure 89 degrees?

Please select an answer first.

Correct answer: A

The correct answer is An acute angle.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: 89 degrees is less than 90 degrees, so the angle is acute.
  3. Check the choice: The correct choice is An acute angle.

89 degrees is less than 90 degrees, so the angle is acute.

10. QuestionMultiple choice

What type of angle is angle measure 179 degrees?

Please select an answer first.

Correct answer: B

The correct answer is An obtuse angle.

  1. Identify the figure: Look for endpoints, arrows, intersections, angle measures, or matching halves.
  2. Use the geometry rule: 179 degrees is greater than 90 degrees and less than 180 degrees, so it is obtuse.
  3. Check the choice: The correct choice is An obtuse angle.

179 degrees is greater than 90 degrees and less than 180 degrees, so it is obtuse.

Frequently asked questions about Grade 4 Lines, Angles and Symmetry

What is the difference between a line, a ray, and a line segment?

A line extends forever in both directions, a ray has one endpoint and extends forever in one direction, and a line segment has two endpoints.

What is a line of symmetry?

A line of symmetry divides a shape into two matching mirror halves when the shape is folded along that line.

How many questions are on this page?

The page includes five mini tests with 10 questions each, for 50 Grade 4 Lines, Angles and Symmetry questions in total.