Books  Books 51  52 of 52 on In any triangle, the difference of the squares of the two sides w equal to the difference.... 
In any triangle, the difference of the squares of the two sides w equal to the difference of the squares of the segments of the base, or of the two lines or distances included between the extremes of the base and the perpendicular. A Course of Mathematics: For the Use of Academies as Well as Private Tuition  Page 301 by Charles Hutton  1812 Full view 
