9 Parts of a 3 Dimensional Figure Three-dimensional figures have faces, edges, and vertices.A FACE is a flat surface.An EDGE is where two faces meet.A VERTEX is where three or more edges meet.
10 Vertices, Faces & EdgesWrite the number of Faces, Edges and vertices for each 3-D Figure in Activity I.
11 Naming 3D Figures Poly hedron Polyhedron faces many Some 3D Figures have special names,PolyhedronPolyhedronfacesmany
12 A Polyhedron is a 3D figure made of Polygons. Poly-many; gon-angle: a 2D shape with many angles
13 Naming 3D Figures Polyhedrons Non-Polyhedrons Ask the students: What shapes are in the non-polyhedron category?What makes Polyhedrons different from non-polyhedrons? The circlesStudents should recognize that polyhedrons do not have figures with circles.
14 Cylinders & Cones Cylinders 2 circular bases 1 face Cone Sphere 3D circle
15 Polyhedrons Breakdown PrismsRectangular FacesTwo BasesPyramidsTriangular FacesOne Base
16 A Polyhedron is named for its base. Naming A PolyhedronA Polyhedron is named for its base.Bases: HexagonFaces: RectanglesHexagonal(Shape of Base)Prism
17 A Polyhedron is named for its base. Naming A PolyhedronA Polyhedron is named for its base.Base: SquareFaces: Triangles(Shape of Base)PyramidSquare
18 NAMING POLYHEDRONSWrite the name of each 3-D Figure on your activity sheet.