Three-Dimensional Figures

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Three-Dimensional Figures
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3-D Figures

• Cone
• Cylinder
• Prism
• Pyramid
• Sphere

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How are 3-D figures created?
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Space Figures

• Move a rectangle through space It creates a
  rectangular prism!

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Space Figures

• Move a triangle through space It makes a
  triangular prism!

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Space Figures

• Move a circle through space It makes a
  cylinder!

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Space Figures

• Twirl (rotate) a triangle around one of its sides
  It makes a cone!

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Space Figures

• Twirl (rotate) a circle around its diameter It
  makes a sphere!

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Ticket-out-the-door

• What 3D figure is created when you.
• Translate a rectangle
• Translate a circle
• Rotate a rectangle
• Translate a triangle
• Rotate a triangle
• Rotate a circle
• Translate a square

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Cross-Sections

• EQ How can I describe the cross-sections of
  solid figures?

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Vocabulary

• Cross-section a view of the inside of a 3D
  figure after it is sliced
• Polyhedron a 3D figure (a solid with flat faces)

http//www.learner.org/channel/courses/learningmat
h/geometry/session9/part_c/index.html
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Activity