Gallery

Discover apps people built on Collabby by chatting. Run them, then remix to make them yours.

Shape Moves and Congruence

Slide, flip, and turn shapes to match the target, and discover that two reflections make a rotation.

by Anonymous

Triangle Congruence Conditions

Pick SSS, SAS, ASA, AAA or SSA and drag the sliders to see whether the triangle is uniquely determined or several different ones appear.

by Anonymous