Exterior angle of a triangle

- Drag the vertices A, B, C to create different types of triangles. - Use the sliders to create copies of the same triangle and prove that the external angle of a triangle is always equal to the sum of the two interior opposite angles.
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mrsK —

 
Materialtyp
Aktivität
Tags
angle  angles  exterior-angle  geometry  theorem  triangles 
Zielgruppe (Alter)
8 – 18
Sprache
English (Australia)
 
 
GeoGebra Version
4.4
Ansichten
2559
Kontaktiere Autor des Materials
Lizenz
CC-BY-SA, GeoGebra Terms of Use
 

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