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4th Math: Geometry practice questions and exam guide

150 multiple-choice questions, 40 flashcards and 10 scenario simulations, written to the Common Core State Standards blueprint. Every question carries a full rationale.

Last reviewed 2026-10-26 · CoStudy · how we write and review questions

  • 200 total items
  • 150 multiple choice
  • 40 flashcards
  • 10 simulations

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About the 4th Math: Geometry exam

Common Core State Standards (CCSS) — Mathematics, Grade 4: Geometry (4.G.A.1-3). Public standards from corestandards.org.

CoStudy's 4th Math: Geometry bank holds 200 items. Every multiple-choice question carries a written rationale explaining why the correct answer is correct and why each distractor is tempting but wrong, and the bank includes 10 scenario-based simulations.

Free 4th Math: Geometry practice questions

A sample of 12 multiple-choice questions from the bank, with the full rationale shown.

Which triangle has all sides equal?

  1. Scalene
  2. Isosceles
  3. Equilateral
  4. Right

Answer: C — Equilateral

C) Correct. B) 2 equal. A) 0 equal. D) has right angle.

To check line symmetry, you can:

  1. Color it
  2. Rotate it
  3. Slide it
  4. Fold the shape along the line

Answer: D — Fold the shape along the line

D) Correct — halves match. B) rotational. C) translation. A) wrong.

An octagon has ______ sides.

  1. 8
  2. 6
  3. 4
  4. 10

Answer: A — 8

A) Correct. B) hexa. C) quad. D) deca.

An oval/ellipse has ______ lines of symmetry.

  1. 2 (major & minor axes)
  2. 1
  3. 4
  4. Infinite

Answer: A — 2 (major & minor axes)

A) Correct. B/C) wrong. D) circle only.

A right isosceles triangle has ______ lines of symmetry.

  1. 1
  2. 2
  3. 0
  4. 3

Answer: A — 1

A) Correct — through apex. B/C/D) wrong.

An equilateral triangle has ______ lines of symmetry.

  1. 3
  2. 2
  3. 1
  4. 0

Answer: A — 3

A) Correct — one per side. B/C/D) wrong.

A triangle with one obtuse angle is:

  1. Straight
  2. Right
  3. Acute
  4. An obtuse triangle

Answer: D — An obtuse triangle

D) Correct. B/C/A) wrong.

A stop sign has how many equal sides?

  1. 6
  2. 8
  3. 4
  4. 10

Answer: B — 8

B) Correct. B/C/D) wrong.

A quadrilateral can be classified by:

  1. Color
  2. Sides only
  3. Angles only
  4. Sides AND angles

Answer: D — Sides AND angles

D) Correct. B/C) partial. A) wrong.

Which shape has 4 equal sides but not necessarily right angles?

  1. Rectangle
  2. Rhombus
  3. Trapezoid
  4. Triangle

Answer: B — Rhombus

B) Correct. A) rectangles have right angles but not always equal sides. C/D) wrong.

A letter O has how many lines of symmetry?

  1. 0
  2. 1
  3. At least 2 (V + H)
  4. 3

Answer: C — At least 2 (V + H)

C) Correct — vertical and horizontal (many treat O as circle → infinite). B/C/D) wrong.

Lines that share a point are called:

  1. Intersecting
  2. Parallel
  3. Disjoint
  4. Bent

Answer: A — Intersecting

A) Correct. B) never meet. C/D) wrong.

4th Math: Geometry flashcards

5 sample cards from the 40 in the bank.

What is a 'line of symmetry'?

A line that divides a shape into two halves that are mirror images.

In a square, are opposite sides parallel?

Yes — both pairs are parallel.

What is an 'isosceles triangle'?

A triangle with 2 sides equal (and 2 angles equal).

What is a 'point'?

A specific location in space — has no size. Marked with a dot and a capital letter.

What is a 'straight angle'?

A 180° angle — a straight line.

Practise the full 4th Math: Geometry bank

These samples are a small slice. The full bank runs flashcards, multiple choice and timed mock exams with per-chapter progress tracking, on the web and in the iOS app.

Open 4th Math: Geometry →

4th Math: Geometry — frequently asked

What is the 4th Math: Geometry exam?

Common Core State Standards (CCSS) — Mathematics, Grade 4: Geometry (4.G.A.1-3). Public standards from corestandards.org.

How is CoStudy’s 4th Math: Geometry bank organised?

It holds 200 items (150 multiple-choice, 40 flashcards, 10 simulations). Free samples on this page include the full rationale, with no account.

Does CoStudy replace the certifying body?

No. the certifying body owns the outline, the badge, and the sitting rules. This is independent practice with written rationales. We do not sell live items and we do not guarantee a pass.

Where do 4th Math: Geometry fees, cut scores, and pass rates live?

On the certifying body’s site. CoStudy will not invent a sitting fee or a pass rate. If a table on this page lacks a citation, treat it as unverified.

Are these real 4th Math: Geometry exam questions?

No. CoStudy does not have live items. The samples below are original practice written to the published outline, with rationales. Anyone selling “real exam dumps” is describing something you should not buy.

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