Copy of Exterior Angle of a Triangle

Drag the two sliders to transform the angle measures for angle A and B of the triangle. Compare the sum of these angles to the exterior angle at C in the triangle. Is this true for any triangle ABC?

 

Ronan Downes —

Baliabide hau Esteka duten erabiltzaileek soilik ikus dezakete.

 
Baliabide-mota
Lan-orria
Fitxak
Helburu-taldea (adina)
9 – 15
Hizkuntza
English
 
 
Ikustaldiak
469
Contact author of resource
Lizentzia
GeoGebra Terms of Use
Honetan Oinarriturik
Exterior Angle of a Triangle
Honek partekatua: Anthony DiLaura
 
 
© 2026 International GeoGebra Institute