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Grade 4 Lines, Rays & Symmetry Worksheet with Answers

Grade 4 (US) · Year 5 (UK) · Class 4 (India) · Math

Unit 7: GeometryLines & SymmetryCCSS 4.G.A.3

Points, lines, rays and segments, parallel and perpendicular lines, and lines of symmetry. This free upper elementary worksheet has 12 questions and a full answer key. Print it or save it as a PDF — every answer is checked by code, not guessed.

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Lines, Rays & Symmetry

Grade 4 · Math

Score___ / 12

Name

Class

Date

Learning goal: Lines & Symmetry · CCSS 4.G.A.3

Directions: Use the pictures to help you. Solve each problem. Show your work, then write your answer in the box.

Example

Two rays that share an endpoint make what?

Answer: an angle

  1. 1

    How many lines of symmetry does a square have?

    Answer
  2. 2

    How many lines of symmetry does an equilateral triangle have?

    Answer
  3. 3

    What do we call lines that never meet, no matter how far they go?

    Answer
  4. 4

    What do we call part of a line with two endpoints?

    Answer
  5. 5

    How many lines of symmetry does the capital letter A have?

    Answer
  6. 6

    How many lines of symmetry does a regular hexagon have?

    Answer
  7. 7

    How many lines of symmetry does the capital letter F have?

    Answer
  8. 8

    What do we call lines that cross to make right angles?

    Answer
  9. 9

    How many lines of symmetry does an isosceles triangle have?

    Answer
  10. 10

    How many lines of symmetry does a regular octagon have?

    Answer
  11. 11

    How many lines of symmetry does a kite have?

    Answer
  12. 12

    What do we call part of a line with one endpoint that goes on forever in one direction?

    Show your work
    Answer

★ Challenge corner for fast finishers

Find the missing digit: 671 + 317 = 98□

How did I do?

Teacher's comments

Free printable worksheets with answer keys · aethelsystems.com/worksheets/math/4/lines_symmetry

Answer key (click to show)
  1. 1.4
  2. 2.3
  3. 3.parallel lines
  4. 4.a line segment
  5. 5.1
  6. 6.6
  7. 7.0
  8. 8.perpendicular lines
  9. 9.1
  10. 10.8
  11. 11.1
  12. 12.a ray
  13. ★8 (challenge corner)

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How to use this worksheet

  • Use it as a 10–15 minute warm-up or homework task rather than a long drill.
  • Ask students to show their working so you can see where a mistake started, not just that it happened.
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