Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region...
-
Upload
oswin-powell -
Category
Documents
-
view
214 -
download
2
Transcript of Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region...
![Page 1: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/1.jpg)
Ch 12 and 13 Definitions
![Page 2: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/2.jpg)
1. polyhedron
• A solid with all flat surfaces that enclose a single region of space
![Page 3: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/3.jpg)
2. face
• Each flat surface
• A cube has 6 faces
![Page 4: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/4.jpg)
3. edge
• Line segments where the faces intersect
![Page 5: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/5.jpg)
4. vertex
• The point where three planes intersect
![Page 6: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/6.jpg)
5. prism• Polyhedron with two parallel congruent faces.• Named by their bases!• What shape are the sides?
![Page 7: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/7.jpg)
6. Regular prism
• A prism with bases that are regular polygons
![Page 8: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/8.jpg)
7. pyramid• A polyhedron with all faces (except for one)
intersecting at one vertex
![Page 9: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/9.jpg)
8. Regular polyhedron• ALL of its faces are regular, congruent
polygons and all edges are congruent
![Page 10: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/10.jpg)
9. Platonic solids
• Exactly 5 types of regular polyhedronTetrahedron (4 equilateral triangles)Hexahedron (6 squares)Octahedron (8 equilateral triangles)Dodecahedron (12 regular pentagons)Icosahedron (20 equilateral triangles)
![Page 11: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/11.jpg)
10. Cylinder
• Solid (not polyhedron) with circular bases in a pair of parallel planes
![Page 12: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/12.jpg)
11. Cone
• (not a polyhedron)• Has a circular base and a vertex
![Page 13: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/13.jpg)
12. Sphere
• A set of points in space that are a given distance from a given point.
![Page 14: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/14.jpg)
• What are the 2 parallel congruent faces of a prism called?
![Page 15: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/15.jpg)
• The faces of a prism that are not the bases are all __________________________________
![Page 16: Ch 12 and 13 Definitions. 1. polyhedron A solid with all flat surfaces that enclose a single region of space.](https://reader036.fdocuments.in/reader036/viewer/2022081603/5697c00d1a28abf838cc9428/html5/thumbnails/16.jpg)
Orthogonal drawings show two-dimensional views of the top, left, front, back, and right sides.
top left front right back?!
What is the 3-D shape?!