Transformations
Congruence & Similarity
Tap to Move
Use Rigid Transformations (slide, spin, flip) to map the blue shape onto the dotted target. Rigid moves keep shapes Congruent (same size & shape).
Slide to Scale
A Dilation changes size but keeps the shape. This makes figures Similar. Adjust the scale factor to match the orange target.
Scale = 0.5
Scale = 3.0
Drag to Program
Build a sequence of transformations to map the solid blue shape to the dotted target to prove they are congruent.
Transformation Sequence
Step {{index + 1}}
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Available Blocks
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All blocks used
Tap to Categorize
Are these pairs Congruent (rigid transformations only) or Similar (requires dilation)? Tap the button below each pair to toggle.
Master of Transformations!
You've successfully proven shapes are Congruent using rigid transformations and Similar using dilations!