Using dilation to show the sum of the angles in a triangle

Using dilation, this applet will show the sum of the angles in a triangle is 180°.

 

Duane Habecker

 
Materialetype
Arbejdsark
Tags
triangle 
Målgruppe (alder)
11 – 14
Sprog
English (United States)
 
 
 
© 2026 International GeoGebra Institute