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| CabriJava demonstration of Pappus's Theorem |
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Pappus's Theorem states that, if alternate vertices of a hexagon (AB'CA'BC' in the figure) are collinear, Then the intersections of opposite sides (P, Q and R in the figure) are collinear. |
You may move any of the points A,B,C,A',B',C', on their lines
or either of the lines ABC or A'B'C' by clicking
on them and dragging them to a new position
You will see that P, Q and R remain collinear.
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