Internal angle sum of triangles

Author:mrsK

- Drag the vertices A, B, C to create different types of triangles. - Use the sliders to create copies of the same triangle and prove that the internal angles always add up to 180 degrees.

New Resources

Some random function
Model sferyczny - dwunastościan-dwudziestościan
Rose Curve
¿Quién llegará más lejos en el mundial?
Angle Addition: Warm Up Exercises

Discover Resources

JQ Enlargements
Side Splitting Theorem - ST
Copia de Curved Surface Area of Cones (Combined Version)
Average to Instantaneous Rate of Change

Discover Topics

Circle
Sphere
Polygons
Limits
Reflection