Which of the following is NOT a polyhedron?

• Tetrahedron

• Cube

• Sphere

• Hexahedron

What is the base shape of a square pyramid?

• Pentagon

• Square

• Rectangle

• Triangle

If a polyhedron has 12 edges and 8 vertices, how many faces does it have according to Euler's formula?

• 12

• 8

• 6

• 10

What is the net of a cube composed of?

• Eight rectangles

• Five pentagons

• Six squares

• Four triangles

Which shape is formed by the cross-section of a cylinder when cut parallel to its base?

• Ellipse

• Triangle

• Rectangle

• Circle

What is the formal name for a cube?

• Hexahedron

• Dodecahedron

• Tetrahedron

• Octahedron

How many faces does a dodecahedron have?

• 12

• 10

• 14

• 20

What is the shape of the base in a pentagonal pyramid?

• Hexagon

• Square

• Triangle

• Pentagon

Which Platonic solid is made up of equilateral triangles and has 8 faces?

• Tetrahedron

• Dodecahedron

• Hexahedron

• Octahedron

What is the significance of Platonic solids?

• They are named after a Roman philosopher.

• They are composed of regular shapes with equal sides and angles.

• They have different angles.

• They are made of irregular shapes.