Perpendicular lines

Autor:fglynn

Perpendicular Lines Adjust the gradients of lines L_1 and L_2, by moving the three points. Notice that the product of the gradients always equals -1

Nuevos recursos

Trefoil Knot
רישום חופשי
Pathway to Proof: Triangle Angles
Rose Curve
Rolling an Equilateral Triangle

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obtuse triangle
The same number
Pacuan Kuda
Addition using the Make A Ten strategy
Crtanje kutova - Drawing angles - Цртање на агли

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Características estadísticas
Círculo unitario
Congruencia
Sucesiones y Series
Aritmética