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Space figures are figures whose points do not all lie in the same plane. In this unit, we'll study the polyhedron, the cylinder, the cone, and the sphere.

Polyhedrons are space figures with flat surfaces, called faces, which are made of polygons. Prisms and pyramids are examples of polyhedrons.

Cylinders, cones, and spheres are not polyhedrons, because they have curved, not flat, surfaces. A cylinder has two parallel, congruent bases that are circles. A cone has one circular base and a vertex that is not on the base. A sphere is a space figure having all its points an equal distance from the center point.

Move your mouse cursor over each type of space figure to learn more.

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 ·  Space figures

 ·  Prisms

 ·  Pyramids

 ·  Cylinders, cones
    and spheres


First Glance In Depth Examples Workout
First Glance   In Depth   Examples   Workout

Space figures