Internal angle sum of triangles

Autor: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.

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Pathway to Proof: Triangle Angles
רישום חופשי
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apec
Rolling Circles and Polygons

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Property One
Tessellation
Aula 10 Movimento uniforme II
Napoleon’s Theorem
הדלתון דף 2

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Perímetro
Diagramas
Función Tangente
Parábola
Volumen