Triangle Interior + Exterior Angles

INSTRUCTIONS:
Move the sides of the triangle to create different angles, what do yo notice about the image? What changes? What stays the same?
Interact with this app for a few minutes. LARGE POINTS are moveable.
What can we conclude about the measure of an exterior angle when we compare it to the opposite interior angles?
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How can we mathematically express this?
Font sizeFont size
Very smallSmallNormalBigVery big
Bold [ctrl+b]
Italic [ctrl+i]
Underline [ctrl+u]
Strike
Superscript
Subscript
Font color
Auto
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
Close
– mohan pudasaini, Andy Talmadge, antorres24, Tim Brzezinski

Information: Triangle Interior + Exterior Angles