
World 3 · Symmetry of Solids · 13 min · PRO
Tetrahedron, octahedron, dodecahedron, icosahedron
How many symmetries each solid has, and the football
PRO · Symmetry & Fractals
World 3: Symmetry of Solids is part of PRO
The first world of Symmetry & Fractals is free. PRO opens the other 24 lessons in 6 worlds — simulations, quizzes and all.
PRO includes
- All 60 labs — every world, every lesson
- Practice exams and certificates
$8.33/mo, billed yearly ($99.99) · or $39.99 monthly