Triangle Exterior Angle Sum Theorem

Author:GreenMaths

Move the sliders what do you notice about the exterior angle and the interior opposite angles. you can move the sliders back and drag the points to change the shape of the triangle.

New Resources

The black friday GeoGebra :)
Nefroida
Silhouettes without gaps and isolated
Rolling Triangle
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

area--dh
IMAGE D UN SEGMENT
Transformation of Graphs 2
Huygens-Fresnel Model of Refraction

Discover Topics

Combinatorics
Cylinder
Quadrilaterals
Linear Programming or Linear Optimization
Tangent Function