Triangle Names and Angle Sum (Interior and Exterior)

Author:Mr James Bowater, Morton Betts

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

GGB is Awesome!
רישום חופשי
函數的奇偶性
兩位數的位值
Average Value

Discover Resources

isosceles trapezoid
AffineAbbildung_affinesKoordinatensystem
A Circle Rolling on a Circle
Object to image Distance
Moje telo... razmerja, sin

Discover Topics

Variance
Matrices
Curve Sketching
Equations
Triangles