The Complete Quadrilateral

Author:Steve Phelps

The complete quadrilateral consists of four coplanar straight lines – l₁, l₂, l₃and l₄– intersecting in three pairs of opposite vertices – A₁₄, A₂₃ , A₁₃, A₂₄ , A₁₂and A₃₄.

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רישום חופשי
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z`]]
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