Build a triangle

Can you build a {{ step1.targetName }}?

Select an angle type and a side length type.

Angles

Sides

Select both options to see the shape
Impossible shape! A triangle cannot be both {{ step1.selectedAngle }} and {{ step1.selectedSide }}.
Drag to classify

Match the shape to its defining property

{{ zone.label }}

All matched!
Tap the properties

What is always true about a {{ step3.targetShape.name }}?

Tap ALL the correct properties below.

Nest the categories

Build the family tree for a Square

Tap the categories in order from broadest to most specific.

All placed!
{{ step4.selectedSequence[0] }}
{{ step4.selectedSequence[1] }}
{{ step4.selectedSequence[2] }}
{{ step4.selectedSequence[3] }}
Tap a category above to start building
🏆

Geometry Master!

You've successfully classified shapes by their properties and understood their family trees.