Free · Printable · TEKS 3.6A,3.6B,3.6E
Free Grade 3 Geometry: 2D Shapes Worksheets
4+ Texas TEKS-aligned practice questions on geometry: 2d shapes. Print at home or practice online with a built-in AI tutor. No sign-up. No paywall.
Looking for geometry: 2d shapes worksheets for Grade 3? This page has 4+ TEKS-aligned practice questions on this exact topic, mapped to Texas TEKS 3.6A,3.6B,3.6E. Every question goes through an AI quality gate before publishing — no typos, no wrong answer keys, no factually-broken explanations.
Classify polygons and quadrilaterals by attributes such as sides and angles.
Below: a sample of 8 questions with answers and explanations so you can see what's on the worksheet before you print. Each question has the correct choice marked and a one-line "why" so kids who get it wrong understand the fix.
Which shape has exactly 4 sides and 4 right angles, with all sides the same length?
- Rectangle
- Square ✓
- Triangle
- Pentagon
Why: A rectangle has 4 right angles but sides may differ. A square has 4 equal sides AND 4 right angles.
A Texas state-flag star is a pentagon-like 5-pointed shape. How many sides does a regular pentagon have?
- 5 ✓
- 6
- 4
- 7
Why: A pentagon has 5 sides.
A Texas stop sign is a regular octagon. How many sides does it have?
- 9
- 10
- 7
- 8 ✓
Why: An octagon has 8 sides.
Which is NOT a quadrilateral?
- Square
- Rhombus
- Pentagon ✓
- Trapezoid
Why: A quadrilateral has 4 sides. A pentagon has 5 sides, so it's not a quadrilateral.
Common questions
Are these worksheets really free?
Yes. Free to print, free to practice online. No email, no sign-up, no paywall. We make money from optional paid features (toy redemption with real cents), not from the worksheets.
What is TEKS 3.6A,3.6B,3.6E?
TEKS 3.6A,3.6B,3.6E is the Grade 3 Geometry: 2D Shapes standard from the Texas Essential Knowledge and Skills. Classify polygons and quadrilaterals by attributes such as sides and angles.
How many total questions are available?
4+ questions in our Grade 3 Geometry: 2D Shapes bank. Print as many 20-question worksheets as you like — each one pulls a fresh set so your kid doesn't see the same questions twice.
Where do these questions come from?
Generated by our AI pipeline, then quality-gated by two independent models (gpt-4o for content review, Claude Sonnet 4.5 for math verification) before publishing. Every question is tagged to TEKS 3.6A,3.6B,3.6E and modeled on real STAAR item shapes.