Triangle Names and Angle Sum (Interior and Exterior)

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

The Red Chair
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
拼砌四邊形 - 工作紙
Linear Approximations
רישום חופשי

Discover Resources

parallelogram3thing
Equilibrium Problem Practice
SSS ~ Theorem (V1)
triangles semblables 3
Definite integral play

Discover Topics

Pythagoras or Pythagorean Theorem
Dilation
Calculus
Geometry
Mode