10.6 three- dimensional figures
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10.6 Three- Dimensional Figures. I can name three-dimensional figures. Vocabulary. polyhedroncylinder facepyramid edgecone vertexsphere prism base. A polyhedron is a three-dimensional object with flat surfaces, called faces , that are polygons. - PowerPoint PPT PresentationTRANSCRIPT
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10.6 Three- Dimensional
FiguresI can name three-dimensional figures
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Vocabularypolyhedron cylinderface pyramidedge conevertex sphereprismbase
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A polyhedron is a three-dimensional object with flat surfaces, called faces, that are polygons.
When two faces of a three-dimensional figure share a side, they form an edge. A point at which three or more edges meet is a vertex (plural: vertices).
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Identify the number of faces, edges, and vertices on each three-dimensional figure.
A.
B.
5 faces8 edges5 vertices
7 faces15 edges10 vertices
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Identify the number of faces, edges, and vertices on each three-dimensional figure.
A.
B.
6 faces12 edges8 vertices
5 faces9 edges6 vertices
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A prism is a polyhedron with two congruent, parallel bases, and other faces that are all parallelograms. A prism is named for the shape of its bases. A cylinder also has two congruent, parallel bases, but bases of a cylinder are circular. A cylinder is not a polyhedron because not every surface is a polygon.
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A pyramid has one polygon-shaped base and three or more triangular faces that share a vertex. A pyramid is named for the shape of its base. A cone has a circular base and a curved surface that comes to a point. A sphere has no base and one curved surface. All points on the surface are the same distance from a point called the center of the sphere.
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Name the three-dimensional figure
The figure represents a cylinder.
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Name the three-dimensional figure represented by the object.
The figure is a rectangular prism.
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Name the three-dimensional figure represented by the object.
The figure is a square pyramid.
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Lesson Quiz
1. Identify the number of faces, edges, and vertices in the figure shown.
Identify the figure described.
2. two congruent circular faces connected by a curved surface
3. one flat circular face and a curved lateral surface that comes to a point
cylinder
8 faces, 18 edges, and 12 vertices
cone
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2. Identify the figure described. A square base with four triangles that come to a point.
A. square prism B. square pyramid C. rectangular prismD. rectangular pyramid
Lesson Quiz for Student Response Systems
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3. Identify the figure described. A hexagonal base with six triangles that come to a point.
A. hexagonal prism B. triangular prism C. hexagonal pyramid D. triangular pyramid
Lesson Quiz for Student Response Systems