Copy of Cosine rule & Pythagoras' Theorem

Topic:Cosine, Pythagoras or Pythagorean Theorem

Drag the RED point to create an non-right angle triangle. How does the COSINE rule extend Pythagoras' theorem to describe non-right angle triangles? (Tick the box to see the Working).

New Resources

Function art 3D - waiting shed (v2)
Modifiable Right Triangular Prism
Rovnoběžnost rovin
Function art 3D - waiting shed
Pythagorean Theorem: Extension Exercises

Discover Resources

Angles Formed By Intersecting Lines
Right triangle for circle demo
Bicicleta
Parametrized Cosine Surfaces
Operasi Pada Himpunan

Discover Topics

Terms
Cuboid
Multiplication
Square
Power Functions