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Does convexity matter?

Geometry Level 3

Are the five Platonic solids above the only regular polyhedra?

Image credit: http://moodle.tbaisd.org/

Yes No No one knows

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Excel in math and science

Master concepts by solving fun, challenging problems.

It's hard to learn from lectures and videos

Learn more effectively through short, interactive explorations.

Used and loved by over 7 million people

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including olympiad champions, researchers, and professionals.

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by Geoff Pilling

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