Step {{ step }} of 4
Tap the Quadrilaterals
Quadrilaterals are shapes with exactly 4 sides.
Great! You found all {{ step1TargetCount }} quadrilaterals!
Found: {{ step1FoundCount }} / {{ step1TargetCount }}
Sort by parallel sides
Drag shapes into the correct boxes based on their parallel sides.
{{ zone.label }}
{{ zone.desc }}
Slide to fix angles
Make all angles exactly 90° to form a Rectangle.
It's a Rectangle!
Build the shape
Flip the switches to match the target shape.
Target: {{ step4TargetName }}
4 Equal Sides
4 Right Angles
Geometry Master!
You've successfully classified rectangles, squares, rhombuses, parallelograms, and trapezoids!