11-1 Space Figures and Cross Sections

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# 11-1 Space Figures and Cross Sections - PowerPoint PPT Presentation

11-1 Space Figures and Cross Sections. Objectives To recognize polyhedra and their parts To visualize cross sections of space figures. A polyhedron is a space figure, or three-dimensional figures, whose surfaces are polygons. Each polygon is a face of the polyhedron .

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Presentation Transcript
11-1Space Figures and Cross Sections
• Objectives
• To recognize polyhedra and their parts
• To visualize cross sections of space figures
A polyhedron is a space figure, or three-dimensional figures, whose surfaces are polygons.

Each polygon is a faceof the polyhedron.

An edge is a segment that is formed by the intersection of two faces.

A vertexis a point where three or more edges intersect.

Vertices:

D, E, F, G, H

Edges:

DE, EF, FG, GD, DH, EH, FH, AND GH

Faces:

GHD

EFH

FGH

DEH