World 5 · Pythagoras in 3D · 7 min · PROAcross the floor
a² + b² = d²
PRO · Shape Lab
World 5: Pythagoras in 3D is part of PRO
The first world of Shape Lab is free. PRO opens the other 14 lessons in 4 worlds — simulations, quizzes and all.
PRO includes
- All 26 labs — every world, every lesson
- Practice exams and certificates
$8.33/mo, billed yearly ($99.99) · or $39.99 monthly