Question

The platonic solids are

• A. non-convex polyhedron
• B. concave polyhedron
• C. convex polyhedron
• D. non-concave polyhedron

Answer 1

The correct option is C convex polyhedron

A polyhedron is said to be convex if its surface does not intersect itself.

The platonic solids are convex polyhedron.
Example: Tetrahedron