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The properties of straight lines that issue from the point of intersection of the diagonals of a trapezoid, and are perpendicular to its legs
2015
Zenodo
We present four theorems with their proofs, which have to do with the dropping of perpendiculars to the sides of a trapezoid from the point of intersection of the diagonals. Two of the theorems are actually new indicators for the fact that the quadrilateral in which certain characteristics hold is a trapezoid. We also consider whether the converse theorem is also true, as well as different geometric properties that result from the theorems.
doi:10.5281/zenodo.3978178
fatcat:kplfiq22jjcmljylj7kg5cxr54