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Triangle Inequality, Hinge, Mids, & More
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1. Lesson 2 Geogebra Applets
- Triangle Angle Theorems
- Exterior Angle Theorem - YL U4L3
- Triangle Inequality (II)
- Right, Obtuse, or Acute
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2. Lesson 3
- Hinge Theorem
- Inequalities in 1 Triangle
- Triangle Midsegment Action!
- Medians and Centroid Dance
- Altitudes and orthocenter
- Circumcenter & Circumcircle Action!
- Incenter Exploration (A)
- Explore circumcenters, incenters, centroids and orthocenters
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Triangle Inequality, Hinge, Mids, & More
Travis Poland, Feb 26, 2018
Table of Contents
- Lesson 2 Geogebra Applets
- Triangle Angle Theorems
- Exterior Angle Theorem - YL U4L3
- Triangle Inequality (II)
- Right, Obtuse, or Acute
- Lesson 3
- Hinge Theorem
- Inequalities in 1 Triangle
- Triangle Midsegment Action!
- Medians and Centroid Dance
- Altitudes and orthocenter
- Circumcenter & Circumcircle Action!
- Incenter Exploration (A)
- Explore circumcenters, incenters, centroids and orthocenters
Triangle Angle Theorems
Interact with the app below for a few minutes.
Then, answer the questions that follow.
Be sure to change the locations of this triangle's vertices each time before you drag the slider!
What is the sum of the measures of the interior angles of this triangle?
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• Unordered list
1. Ordered list
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[code]Code [ctrl+shift+4]
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What is the sum of the measures of the exterior angles of this triangle?
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
Hinge Theorem
Hinge THeorem
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