† trapezian.

Etymology: < modern Latin trapezia, adjective feminine < trapezium n., used absolutely for trapezia figura trapezial figure or shape.

Obsolete.

A quadrilateral figure other than a parallelogram; the ‘trapezium’ of Euclid, comprising the later trapezium and trapezoid.

ΘΚΠ

the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > quadrilateral > irregular

trapezium1570

trapezia1631

1631 De la Main (title) The making, description, and use of a small portable Instrument for the Pocket..in form of a mixt Trapezia thus called a Horizontall Quadrant.

1693 J. Wing Heptarchia Math. 64 A Table shewing the Area of Right-line Figures, as Squares, Triangles, and Trapezia's.

1752 A. Fletcher Universal Measurer i. 98 To reduce a Trapezia ABCD to a triangle.

1766 Compl. Farmer at Surveying Quadrangular figures..are either parallelograms or trapesias.

This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2021).

单词	trapezia
释义	† trapezian. Etymology: < modern Latin trapezia, adjective feminine < trapezium n., used absolutely for trapezia figura trapezial figure or shape. Obsolete. A quadrilateral figure other than a parallelogram; the ‘trapezium’ of Euclid, comprising the later trapezium and trapezoid. ΘΚΠ the world > relative properties > number > geometry > shape or figure > [noun] > two-dimensional > quadrilateral > irregular trapezium1570 trapezia1631 1631 De la Main (title) The making, description, and use of a small portable Instrument for the Pocket..in form of a mixt Trapezia thus called a Horizontall Quadrant. 1693 J. Wing Heptarchia Math. 64 A Table shewing the Area of Right-line Figures, as Squares, Triangles, and Trapezia's. 1752 A. Fletcher Universal Measurer i. 98 To reduce a Trapezia ABCD to a triangle. 1766 Compl. Farmer at Surveying Quadrangular figures..are either parallelograms or trapesias. This entry has not yet been fully updated (first published 1914; most recently modified version published online March 2021). < n.1631
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