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Figure Visualization · Study Guide

Paper Folding: Nets & 3D Shapes

The Figure Visualization section tests spatial reasoning — can you look at a flat pattern and picture the 3D shape it makes? Train your eye with the animations below, then lock it in with worked examples.

Watch a Cube Fold

The cross is the most common cube net. Tap the button to see each face fold up in sequence: Top first, then Right, Left, Bottom, and finally Back — wrapping around the Front face to close the box.

FrontTopRightLeftBottomBackTopLeftRightTap Fold to watch each face close up

Five Common Nets

These five shapes cover the majority of what you'll see on the test. Tap any card to see the flat net fold into its 3D result.

Cube

6 faces

6 identical squares arranged in a cross, T, or L shape.

Tap to fold

Rectangular Prism

6 faces

3 pairs of matching rectangles. Opposite faces are always identical.

Tap to fold

Triangular Prism

5 faces

3 rectangles in a strip with triangles on both ends.

Tap to fold

Square Pyramid

5 faces

1 square base with 4 triangles — all triangles meet at the apex.

Tap to fold

Cylinder

3 faces

1 rectangle (body) + 2 circles (ends). Rectangle width = circumference.

Tap to fold

Tips for Identifying Nets Quickly

Spatial reasoning is a skill, not a gift. These five checks get you to the answer faster than trying to fold the shape in your head.

  1. 1

    Count the faces first

    A cube has 6, a triangular prism has 5, a square pyramid has 5, a cylinder has 3. If the net has the wrong count, it's out — no folding needed.

  2. 2

    Check matching edge lengths

    Where two faces share an edge in the net, those edges must be the same length. A long rectangle can't fold onto a short square — the edges won't meet.

  3. 3

    Watch for the 2×2 rule (cubes)

    A valid cube net never contains a 2×2 block of squares. If you see four squares arranged in a tight 2×2 square, faces will overlap when folded — it's not a cube.

  4. 4

    Pick a base and fold mentally

    Choose the largest or most central face as the base. Keep it flat in your mind and picture the others folding up from it. This is faster than trying to fold every face at once.

  5. 5

    Practice with real paper

    Cut out nets on scratch paper and fold them. Ten minutes of physical folding builds more spatial intuition than an hour of staring at diagrams. The test doesn't let you fold, but your brain will remember how.

Worked Examples

Example 1

A flat pattern has a square in the center with four identical triangles attached to each edge. What 3D shape does it make?

Base

Count faces: 1 square + 4 triangles = 5 faces total.

Find the base: The square is surrounded by triangles, so it must be the base. Everything else folds up from it.

Fold it up: Each triangle hinges on one edge of the square and rotates upward. All four triangle tips meet at the same point above the center of the square.

Answer: Square pyramid

Tip: When triangles surround a single face on all sides, you're looking at a pyramid. The shape of the base tells you which kind — square base ⇒ square pyramid, triangle base ⇒ tetrahedron.

Example 2

Can this arrangement of 6 squares fold into a closed cube? (Squares are labeled A–F.)

CDEABF

Count faces: 6 squares. A cube has 6 faces — the count checks out.

Check the 2×2 rule: The net is a 2×3 grid, which contains a 2×2 block of squares. Red flag.

Fold it mentally: Use A as the base. B folds up to become the right wall, C becomes the back, D becomes the top. Now E would need to fold from D's right edge — but that position is already taken by B.

Answer: No — faces overlap.

Tip: Having the right face count doesn't guarantee a valid net. If you see a 2×2 block of squares in a supposed cube net, eliminate it immediately — it will always overlap.

Quick Reference

ShapeFacesWhat to Look For in the Net
Cube6 squaresAll 6 faces identical. Cross, T, or L arrangement. No 2×2 blocks allowed.
Rectangular Prism6 rectangles3 pairs of matching rectangles. Opposite faces are identical.
Triangular Prism3 rect + 2 triThree rectangles in a strip with matching triangles on the ends.
Square Pyramid1 sq + 4 triOne square surrounded by four identical triangles, one on each edge.
Cylinder1 rect + 2 circlesRectangle with two matching circles. Rectangle width equals the circle's circumference.

Ready to practice?

Build your spatial reasoning with timed Figure Visualization questions that match the real test format.

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