How Many Lines of Symmetry? is a free printable Grade 4 maths worksheet on linking a regular polygon’s sides to its lines of symmetry, aligned to Common Core standard 4.G.A.3. It prints 6 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two pupils in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.
Set 1 of 25 · the same problems every time you open this link.
1.A regular polygon with 5 sides has how many lines of symmetry?
2.A regular polygon with 11 sides has how many lines of symmetry?
3.A regular polygon with 6 sides has how many lines of symmetry?
4.A regular polygon with 7 sides has how many lines of symmetry?
5.A regular polygon with 9 sides has how many lines of symmetry?
6.A regular polygon with 10 sides has how many lines of symmetry?
LessonPrint · 4.G.A.3 · Set 1 · free to copy for classroom use
Answer key — How Many Lines of Symmetry?
Set 1. Prints on its own sheet.
1.5
2.11
3.6
4.7
5.9
6.10
Questions about How Many Lines of Symmetry?
What does the How Many Lines of Symmetry? worksheet cover?
It practises linking a regular polygon’s sides to its lines of symmetry — 6 questions for Grade 4, all on Common Core 4.G.A.3: Find lines of symmetry. The instruction to pupils is “Answer each question”, and the answer key follows on the next sheet.
Which Common Core standard does How Many Lines of Symmetry? practise?
CCSS.MATH.CONTENT.4.G.A.3 — 4.G.A.3, in the Geometry domain for Grade 4. The published standard reads: “Recognize a line of symmetry for a two-dimensional figure. Identify line-symmetric figures and draw lines of symmetry.” The worksheet assesses that standard rather than a paraphrase of it.
What age or grade is this worksheet for?
How Many Lines of Symmetry? is written for Grade 4, typically ages 9-10. It is one of the sheets on 4.G.A.3, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.
Does How Many Lines of Symmetry? come with an answer key?
Yes. All 6 answers are generated from the same problems as the questions, so the key cannot drift out of step with the sheet. It starts on a fresh sheet of paper, after the questions, so it is not handed out with the class by accident.
How many different versions of How Many Lines of Symmetry? can I print?
25 — one per pupil, and all 25 ask different questions. Set 1 downloads the whole class as a single PDF. Every version is fixed to its own address, so a sheet printed today holds the same problems when you reopen it next week.
Is How Many Lines of Symmetry? free to print and photocopy?
Yes. How Many Lines of Symmetry?, its answer key and its 25 versions are free to print and photocopy for your own class, with no account, no email capture and no subscription at the download step. Please do not resell them or republish them as your own.