How to find missing coordinates ?

Правка en2, от travelers, 2017-03-25 11:52:58

given the end points of the largest parallel side and the lengths of other three sides of a trapezium how to find other two coordinate points of that trapezium?  if point A, point B, b,c,d are given how to find point C and D?

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  Rev. Язык Кто Когда Δ Комментарий
en5 Английский travelers 2017-03-25 23:03:37 85
en4 Английский travelers 2017-03-25 11:54:11 0 (published)
en3 Английский travelers 2017-03-25 11:53:38 21 Tiny change: '777.png)\nif point A' -> '777.png)\n \n if point A'
en2 Английский travelers 2017-03-25 11:52:58 157
en1 Английский travelers 2017-03-25 11:50:31 195 Initial revision (saved to drafts)