Cosine rule & Pythagoras' Theorem

Argomento:Coseno, Pitagora o teorema di Pitagora

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).

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Variation Theory Illustration: Point-Slope Form
Difference engine Babbage vb 2
The 3D Space
bewijs stelling van Pythagoras

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Solution when X value changes
Nephroid related envelopes
Does a Triangle have a Center?
Trace points forming right angle
Amanda

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Derivata
Poligoni
Rombo
Area
Funzioni trigonometriche