Triangles

What makes a triangle equilateral, isosceles, or scalene?

How are these triangles the same? How are they different? Manipulate the triangles by dragging their blue corner points. What happens to their side lengths?

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Drunk Parabola
Traffic Cone
Untitled
Triangle Flexer

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optimización
Tangent and Radius
Population of South Korea (1900-2010)
Compound of five cubes
Cópia de PITAGORAS

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Trigonometry
Derivative
Rational Numbers
Orthocenter
Right Triangles