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2D to 3D: What's Going On?
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1. Parts 1-3
- 2D to 3D: What's Going On? (Part 1)
- 2D to 3D: What's Going On? (Part 2)
- 2D to 3D: What's Going On? (Part 3)
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2. Parts 4-6
- 2D to 3D: What's Going On? (Part 4)
- 2D to 3D: What's Going On? (Part 5)
- 2D to 3D: What's Going On? (Part 6)
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2D to 3D: What's Going On?
Tim Brzezinski, Jun 4, 2020

2D to 3D: Interactive Student Investigation
Table of Contents
- Parts 1-3
- 2D to 3D: What's Going On? (Part 1)
- 2D to 3D: What's Going On? (Part 2)
- 2D to 3D: What's Going On? (Part 3)
- Parts 4-6
- 2D to 3D: What's Going On? (Part 4)
- 2D to 3D: What's Going On? (Part 5)
- 2D to 3D: What's Going On? (Part 6)
2D to 3D: What's Going On? (Part 1)
In the app below, the 2D figure you see on the left is the same as the 2D figure you see on the right.
Slide the slider (lower left) all the way to the right.


What do you see happening here? Describe as best you can in your own words.
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2D to 3D: What's Going On? (Part 4)
In the app below, the 2D figure you see on the left is the same as the 2D figure you see on the right.
Construct a cylinder whose height is double its radius.


Explain how you know why the surface you made above is a cylinder.
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In the app above, explain how the positioning of your points guarantees the cylinder's height is double its radius.
Font sizeFont size
Very smallSmallNormalBigVery big
Bold [ctrl+b]
Italic [ctrl+i]
Underline [ctrl+u]
Strike
Superscript
Subscript
Font colorAuto
Justify
Align left
Align right
Align center
• Unordered list
1. Ordered list
Link [ctrl+shift+2]
Quote [ctrl+shift+3]
[code]Code [ctrl+shift+4]
Insert table
Remove Format
Insert image [ctrl+shift+1]
Insert icons of GeoGebra tools
[bbcode]
Text tools
Insert Math
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