GeoGebra
Create Lesson
GeoGebra
Home
News Feed
Resources
Profile
People
Classroom
App Downloads
Triangle Names and Angle Sum (Interior and Exterior)
Author:
Morton Betts
Topic:
Equilateral Triangles
,
Isosceles Triangles
,
Right Triangles
,
Scalene Triangles
,
Triangles
How to name triangles. The conditions for naming triangles. Proof the sum of interior (inside) angles = 180 deg. Proof the other two angles equal exterior angle.
New Resources
Open Middle: Perimeter of a Rectangle
Regular Pentagon Wonder: GoGeometry Action 192!
Organic Ellipse
Würfel mit Netz
Apple Demo 2022
Discover Resources
schieferKegel
wzp4
Symmetry Exercises for Kids
Complex Fourier Tiv
UltimoGeogebra
Discover Topics
Ratios
Secant Line or Secant
Equations
Upper and Lower Sum or Riemann Sum
Centroid or Barycenter