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Right Angles in Shapes is a free printable Grade 4 maths worksheet on identifying which shapes contain right angles, aligned to Common Core standard 4.G.A.1. It prints 5 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.

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All 25 sets ask different questions.

Right Angles in Shapes

4.G.A.1

NameDate

Sort each one into the right box.

1.Sort each one into the right box.

Sort: circle, L-shape, rhombus, cross

Has right anglesNo right angles
2.Sort each one into the right box.

Sort: cross, oval, rhombus, right triangle

Has right anglesNo right angles
3.Sort each one into the right box.

Sort: circle, right triangle, square, equilateral triangle

Has right anglesNo right angles
4.Sort each one into the right box.

Sort: square, rectangle, equilateral triangle, circle

Has right anglesNo right angles
5.Sort each one into the right box.

Sort: L-shape, square, equilateral triangle, right triangle

Has right anglesNo right angles

LessonPrint · 4.G.A.1 · Set 1 · free to copy for classroom use

Answer key — Right Angles in Shapes

Set 1. Prints on its own sheet.

  1. 1.Has right angles: L-shape, cross; No right angles: circle, rhombus
  2. 2.Has right angles: cross, right triangle; No right angles: oval, rhombus
  3. 3.Has right angles: right triangle, square; No right angles: circle, equilateral triangle
  4. 4.Has right angles: square, rectangle; No right angles: equilateral triangle, circle
  5. 5.Has right angles: L-shape, square, right triangle; No right angles: equilateral triangle

Questions about Right Angles in Shapes

What does the Right Angles in Shapes worksheet cover?

It practises identifying which shapes contain right angles — 5 questions for Grade 4, all on Common Core 4.G.A.1: Draw and identify lines, rays and angles. The instruction to pupils is “Sort each one into the right box”, and the answer key follows on the next sheet.

Which Common Core standard does Right Angles in Shapes practise?

CCSS.MATH.CONTENT.4.G.A.1 — 4.G.A.1, in the Geometry domain for Grade 4. The published standard reads: “Draw points, lines, line segments, rays, angles (right, acute, obtuse), and perpendicular and parallel lines. Identify these in two-dimensional figures.” The worksheet assesses that standard rather than a paraphrase of it.

What age or grade is this worksheet for?

Right Angles in Shapes is written for Grade 4, typically ages 9-10. It is one of the sheets on 4.G.A.1, so it suits any pupil working at that standard — including older pupils revisiting it and younger ones working ahead.

Does Right Angles in Shapes come with an answer key?

Yes. All 5 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 Right Angles in Shapes 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 Right Angles in Shapes free to print and photocopy?

Yes. Right Angles in Shapes, 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.

More practice for 4.G.A.1

Draw and identify lines, rays and angles.

All Grade 4 worksheets

Last reviewed 2026-09-05. Aligned to 4.G.A.1 of the Common Core State Standards for mathematics.