Polygons and Solids

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) moving along a curved line. 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 along a circular line 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.

Name the Polygons

Name the polygons

1. Name these figures. 2. Group a is _______________ 3. Group b is _______________

Diagonal-A segment connecting any two non consecutive vertices. So, if you join two vertices of a polygon which are not already joined by an edge, you get a diagonal.

Name of polygon: _________________ Number of diagonals: ______________

Geometric Solids 3 dimensions

PYRAMID PRISM CYLINDERS SPHERE CONE

Name the solids RECTANGULAR PRISM SPHERE CYLINDER CONE

Name the solids. SPHERE PYRAMID

Rectangular Prism

Can you name each of these?