http://www.visualdictionaryonline.com/s

**helix**

Volume or solid of spiral shape that turns at a constant angle.

**cylinder**

Volume or solid generated by the rotation of a straight line (generatrix) moving along a curved line (directrix).

**regular octahedron**

Volume or solid with eight triangular sides of equal area; it has six vertices and 12 edges.

**parallelepiped**

Volume or solid with six sides (parallelograms) that are parallel in pairs.

**cube**

Volume or solid with six square sides of equal area and six equal edges; it has eight vertices.

**pyramid**

Volume or solid generated by straight lines (edges) connecting the angles of a polygon (base) to the vertex and whose sides form triangles.

**cone**

Volume or solid generated by the rotation of a straight line (generatrix) along a circular line (directrix) from a fixed point (vertex).

**torus**

Volume or solid generated by the rotation of a circle at an equal distance from its center of rotation.

**sphere**

Volume with all the points on its surface the same distance from its center; the solid thus delimited is a round ball.

**hemisphere**

Half sphere cut along its diameter.

http://www.visualdictionaryonline.com/s