1. Investigation #4:
*geometric solids ­ a 3­D geometric figure
*faces ­ a flat surface of a geometric solid
*edges ­ a line segment formed where 2 faces of a geometric solid
intersect
*vertex (vertices) ­ a point where 2 edges of a geometric solid meet
*polyhedron ­ a geometric solid whose faces are polygons
*prism ­ a polyhedron with 2 congruent parallel bases
1

2. *pyramid ­ a type of polyhedron with lateral surfaces that narrow to a
point
*cylinder ­ a geometric solid with 2 parallel bases that are circles
*cone ­ a geometric solid with one circular base that connects to a point
*sphere ­ a smooth curved solid, that has every point the same distance
from its center
2