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

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Building Triangles with Set Areas
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Building Figures with Set Areas
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Building Trapezoids with Set Areas

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skalarnipr
Meetkunde treasure opdr
ICT Task
Finding Patterns in Pascal's Triangle
parabola, knot, conchoid and line

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