warm up how many corners does the tissue box have? how many flat surfaces? how many folded creases?...
TRANSCRIPT
![Page 1: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/1.jpg)
Warm UpHow many corners does the tissue box have? How many flat surfaces? How many folded creases?Draw a net for the tissue box.
Corners: 8Flat Surfaces: 6Creases: 12
![Page 2: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/2.jpg)
Space Figures and Cross Sections
Objectives:• To recognize polyhedrons and their parts.• To visualize cross sections of space figures.
![Page 3: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/3.jpg)
Vocabulary^
• Why do we study the parts of a ployhedron?We can analyze a three-dimensional figure by using the relationship among its vertices, edges, and faces.
polyhedron
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Problem1~
![Page 5: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/5.jpg)
Euler’s Formula
![Page 6: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/6.jpg)
Using Euler’s Formula
12
30
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Practice*
![Page 8: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/8.jpg)
Cross Section~
![Page 9: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/9.jpg)
Practice*
![Page 10: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/10.jpg)
Drawing a Cross Section
![Page 11: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/11.jpg)
Practice*
![Page 12: Warm Up How many corners does the tissue box have? How many flat surfaces? How many folded creases? Draw a net for the tissue box. Corners: 8 Flat Surfaces:](https://reader033.vdocument.in/reader033/viewer/2022061604/5697bfe31a28abf838cb4f82/html5/thumbnails/12.jpg)
Homework
• P692: 6, 8, 9, 11, 12, 14, 18-23