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

koch tool
Nikmati Keunggulan Di Bandar Judi Terpercaya
Cobb-Douglas Production Function
רישום חופשי
Floch, fractal, iteration, custom tool.

Discover Resources

Interactive Graphing Hyperbolas Ex 1B
Perpendicular Bisectors in a Triangle
Perimeter of a Trapezoid
LMOrigami20 Robert Neale Pinwheel-Ring-Pinwheel aka Magic Star
เศษส่วน

Discover Topics

Kite
Mode
Vectors
Coordinates
Derivative