M316L Chapter 8 Section 8'3: 3d Figures

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M316L Chapter 8Section 8.3 3d Figures

• Instructor Ricardo Teixeira
• September 17th, 2007

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3D Figures

• Cube try to define it
• Box or rectangular prism

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• Name the vertices of the front face
• Name two parallel line segments
• Name two line segments that are not coplanar
• Name two intersecting segments
• Name two skew lines
• Are the points A, B and H coplanar?
• Could two segmentsintersect and be non-planar?

E
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Polyhedra

• Examples of polyhedra
• Definition of polyhedron
• Edge, faces, vertices
• Convex and concave
• Prisms bases, lateral faces, right/oblique
• Pyramid base, apex
• Regular polyhedron.

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More on 3D figures

• Cylinder
• Cones
• Spheres
• Nets.