Geometry

Hong Kong

Stage 1 - Stage 3

Shapes A and B are polyhedra while shape C is not. Why?

Shapes A and B consist of flat faces only, while shape C does not.

A

Shapes A and B are oblique, while shape C is not.

B

Shapes A and B are prisms, while shape C is not.

C

Shapes A and B are convex, while shape C is not.

D

Easy

< 1min

Which of the following solids is a polyhedron?

Easy

< 1min

Which of the following solids has faces, vertices and edges?

Easy

< 1min

A number of 1cm x 1cm x 1cm cubes are glued together to form a 3cm x 3cm x 3cm cube. The outside faces of the large cube are painted blue and the small cubes are then pulled apart.

Easy

1min

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