Page:Euclid's Elements 1714 Barrow translation.djvu/17

Rh

XXXI. A Rhombus, or diamond-figure, is that which has four equal ides, but is not right-angled; as A.



XXXII. A Rhomboides, or diamond-like figure, is that whoe oposite ides, and oppoite angles, are equal; but has neither equal nor right angles; as GLMH.



XXXIII. All other quadrilateral figures beides thee are called Trapezia, or Tables: as GNDH.



XXXIV, Parallel, or equiditant right lines are uch, which being in the ame uperficies, if infinitely produced, would never meet; as A and B.



XXXV. A Parallelogram is a quadrilateral figure, whose oppoite ides are parallel, or equiditant; as GLHM.