chapter 1: tools of geometry
DESCRIPTION
Chapter 1: Tools of Geometry. 1-2 Drawings, Nets, & Other Models. Isometric Drawing. “isos” = equal “metron” = measure All 3-D measurements are scaled equally Use isometric dot paper to show three sides of a figure from a corner view. Example 1. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/1.jpg)
Chapter 1: Tools of Geometry
1-2Drawings, Nets, & Other Models
![Page 2: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/2.jpg)
Isometric Drawing
• “isos” = equal• “metron” = measure• All 3-D measurements are scaled equally• Use isometric dot paper to show three
sides of a figure from a corner view
![Page 3: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/3.jpg)
Example 1• Make an isometric drawing
of the cube structure on page 10 of your book.
![Page 4: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/4.jpg)
Orthographic Drawing
• Shows a top view, a front view, and a right-side view
• Like a blueprint of a building
![Page 5: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/5.jpg)
Example 2• Make an orthographic drawing of the
figure on page 11 of your book.
![Page 6: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/6.jpg)
Foundation Drawing
• Shows the base of a structure and the height of each part
• Used for skyscrapers!
![Page 7: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/7.jpg)
Example 3• Make a foundation drawing for the isometric
drawing on page 11 of your book.
![Page 8: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/8.jpg)
Nets
• Two-dimensional pattern that you can fold to form a three-dimensional figure
• Shows all of the surfaces of a figure in one view
![Page 9: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/9.jpg)
Example 4
• What figure will this net make?
![Page 10: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/10.jpg)
Example 5
• Draw a net for the graham cracker box.
![Page 11: Chapter 1: Tools of Geometry](https://reader035.vdocuments.net/reader035/viewer/2022081503/56815c2e550346895dca0f7c/html5/thumbnails/11.jpg)
Homework
• P. 13-15
• 1-16 all (with work)• 23-26• 28-30