Adjustable Triangle: Exterior angle

Use this manipulative triangle to practice calculating missing exterior angles. First try hiding only the exterior angle Next only showing two angles. Can you still find the missing angles? What rules do you need to know to work these out?

 

adamgonza

 
Typ Materiałów
Aktywność
Znaczniki
angle  calculate  degree  exterior-angle  triangle 
Grupa docelowa (wiek)
11 – 14
Język
English (United Kingdom)
 
 
Wersja GeoGebry
3.2
Widoki
1815
Skontaktuj się z autorem zasobu
 
 
© 2026 International GeoGebra Institute