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Geometry
- SAS: Dynamic Proof!
- SSS: Dynamic Proof!
- ASA Theorem?
- 4. Exploring SSA
- 4 Exploring AAS
- SSS ~ Theorem (V2)
- area of circle
- Circumference and Pi
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Geometry
Derek Kimball, Nov 11, 2016
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1. SAS: Dynamic Proof!
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2. SSS: Dynamic Proof!
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3. ASA Theorem?
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4. 4. Exploring SSA
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5. 4 Exploring AAS
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6. SSS ~ Theorem (V2)
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7. area of circle
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8. Circumference and Pi
SAS: Dynamic Proof!
The SAS Triangle Congruence Theorem states that if 2 sides and their included angle of one triangle are congruent to 2 sides and their included angle of another triangle, then those triangles are congruent. The applet below uses transformational geometry to dynamically prove this very theorem.
Interact with this applet below for a few minutes, then answer the questions that follow.
As you do, feel free to move the BIG WHITE POINTS anywhere you'd like on the screen!
Q1:
What geometry transformations did you observe in the applet above? List them.
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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
Q2:
What common trait do all these transformations (you listed in your response to (1)) have?
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
Q3:
Go to this link and complete the first 5 exercises in this GeoGebra Book chapter.
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
Quick (Silent) Demo
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