Figure Series & Analogy
A figure series changes by a consistent rule — rotation by a fixed angle, adding/removing an element, shading shifting one step, or a shape growing. Identify the single transformation from one figure to the next and continue it. Figure analogy (A:B :: C:?) applies the A→B change to C.
What changes between figures?
A figure series is built on one (sometimes two) consistent transformations. Check them in this order:
| Transformation | What to look for |
|---|---|
| Rotation | the whole figure turns a fixed angle each step (45°, 90°, 180°) |
| Reflection | the figure flips left-right or top-bottom |
| Addition / removal | an element (line, dot, side) is added or removed each step |
| Shading / movement | a shaded part moves one position (often clockwise) each step |
Rotation — the most common rule
✅ Solved examples
✏️ Practice — try these, take hints as needed
📝 Topic test — 8 questions
Auto-graded with full solutions; saved to your dashboard. Use the calculator and formula sheet (top-right) any time.
Formula Reference Sheet
The governing rules
| Mirror image | left ↔ right (vertical mirror) |
|---|---|
| Water image | top ↔ bottom (horizontal/water surface) |
| Dice | opposite faces sum to 7 (standard die) |
| Painted cube (n×n×n) | corners 8, edges 12(n−2), faces 6(n−2)², inner (n−2)³ |
| Paper folding | each fold doubles the punched holes (2^folds) |