Identify Polyhedrons, Spheres, Cylinders and their parts

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Identify Polyhedrons, Spheres, Cylinders and
their parts

• Surface Area and Volumes
• Unit 5 1.1 and 1.2

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Definitions Essential to Success

• Face
• Edge
• Vertex
• Polyhedron
• http//www.eduplace.com/math/mw/models/overview/5_
  17_1.html

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Polyhedron

• A 3 dimensional figure whose surfaces are
  polygons
• Can you give me an example of a polygon?

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Remember a Polygon is not a Polyhedron A
Polygon is a closed plane figure with 3 or more
sides and it is 2 dimensional (FLAT)!
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POLYHEDRONS
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Face A flat side of a 3 dimensional object
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Edge Intersection of 2 faces on a solid object.
This is a line.
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Vertex A point where 3 or more edges intersect
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Steps to Identifying Polyhedrons
http//www.eduplace.com/math/mw/models/overview/5_
17_1.html
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Rectangular Prism
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Cube Also known as a square prism
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Triangular Prism.
.
.
.
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Hexagonal Prism
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Triangular Pyramid, aka Tetrahedron
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Square Pyramid
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Cylinder A solid with two parallel circular
bases.If you "unwrap" the middle section and lay
it flat, it is a rectangle.
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Sphere A solid figure where all points
are an equal distance from the center
point. It is a Ball.

http//www.kutasoftware.com/FreeWorksheets/GeoWork
sheets/10-Identifying20Solid20Figures.pdf
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http//www.pearsonsuccessnet.com/snpapp/iText/prod
ucts/0-13-368405-9/phs_geometry_na_main.html?chapt
ernullpagenullanchorynull
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2 Dimensional to 3DimensionalWhere we have been
and where we are going
http//www1.teachertube.com/viewVideo.php?video_id
60529titlePolyhedronsvpkey