Free · Printable · TEKS 4.6A,4.6C,4.6D,4.7C,4.7E
Free Grade 4 Geometry: Lines, Angles & Shapes Worksheets
540+ Texas TEKS-aligned practice questions on geometry: lines, angles & shapes. Print at home or practice online with a built-in AI tutor. No sign-up. No paywall.
Looking for geometry: lines, angles & shapes worksheets for Grade 4? This page has 540+ TEKS-aligned practice questions on this exact topic, mapped to Texas TEKS 4.6A,4.6C,4.6D,4.7C,4.7E. Every question goes through an AI quality gate before publishing — no typos, no wrong answer keys, no factually-broken explanations.
Identify lines, classify angles, and measure with a protractor.
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.
Two lines that never cross and stay the same distance apart are called…
- perpendicular
- parallel ✓
- intersecting
- rays
Why: Parallel lines never meet.
Classify a 49° angle.
- right
- acute ✓
- obtuse
Why: Acute < 90°, right = 90°, obtuse between 90° and 180°. 49° is acute.
What kind of angle has a measure of 31°?
- acute ✓
- right
- obtuse
Why: Acute < 90°, right = 90°, obtuse between 90° and 180°. 31° is acute.
An angle is 92°. Acute, right, or obtuse?
- acute
- right
- obtuse ✓
Why: Acute < 90°, right = 90°, obtuse between 90° and 180°. 92° is obtuse.
An angle measures 47°. What type of angle is it?
- acute ✓
- right
- obtuse
Why: Acute < 90°, right = 90°, obtuse between 90° and 180°. 47° is acute.
An angle measures 111°. What type of angle is it?
- right
- obtuse ✓
- acute
Why: Acute < 90°, right = 90°, obtuse between 90° and 180°. 111° is obtuse.
What kind of angle has a measure of 110°?
- acute
- right
- obtuse ✓
Why: Acute < 90°, right = 90°, obtuse between 90° and 180°. 110° is obtuse.
What kind of angle has a measure of 129°?
- obtuse ✓
- acute
- right
Why: Acute < 90°, right = 90°, obtuse between 90° and 180°. 129° is obtuse.
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 4.6A,4.6C,4.6D,4.7C,4.7E?
TEKS 4.6A,4.6C,4.6D,4.7C,4.7E is the Grade 4 Geometry: Lines, Angles & Shapes standard from the Texas Essential Knowledge and Skills. Identify lines, classify angles, and measure with a protractor.
How many total questions are available?
540+ questions in our Grade 4 Geometry: Lines, Angles & 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 4.6A,4.6C,4.6D,4.7C,4.7E and modeled on real STAAR item shapes.