 | Benjamin Donne - Geometry, Plane - 1775 - 338 pages
...four equal Sides, but its Angles not right Angles. 3337. A Rhomboïdes is that which has its. oppofite Sides equal to one another, but all its Sides are not equal, nor its Angles right ones. 'Note. For a Definition of a Parallelogram, fee Art. 9738. Scholium. In... | |
 | Proclus (Diadochus.) - 1788 - 350 pages
...are not right Angles. " •. i I * " " DEFINITION XXXIIL A RHOMBOID is that which has its oppofite Sides equal to one another, but all its Sides are not equal, nor its Angles Right Angles, DEFINITION XXXIV. All other Quadrilateral Figures befldes thefe, are called... | |
 | John Playfair - Mathematics - 1806 - 320 pages
...which has all its sides equal, but its angles are not right angles. XXVIII. A rhomboid is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles. XXIX. Book I. XXX. . 1 Parallel straight lines are such as are in the... | |
 | Robert Simson - Trigonometry - 1806 - 546 pages
...which has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid is that which has its opposite sides equal to one another, but all its sides arc not equal, nor its angles richt angles. All other four sided figures, besides these, are called... | |
 | Friedrich Christian Accum - Crystallography - 1813 - 484 pages
...all equal, but whose angles are not right angles, as Fig.-31. 31. A rhomboid is a parallelogram which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right ones. See Fig. 32. 32. Fig. 33 is a trapezium. 33. Consequently every irregular... | |
 | Euclides - 1814 - 560 pages
...has its sides equal, but its angles are not right angles. xxxiii. See N. A rhomboid, is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles. XXXIV. All other four-sided figures besides these, are called Trapeziums.... | |
 | John Playfair - 1819 - 354 pages
...has all its sides equal, but its angles are not right angles. . . XXVIII. A rhomboid, is that which has its opposite sides equal to one another; but all its sides are not equal, nor its angles right angles. XXIX. All other four sided figures besides these, are called Trapeziums.... | |
 | George Crabb - Industrial arts - 1823 - 704 pages
...angles, as EFGH, fig. 14. — A rhomboid is a figure which has its opposite sides equal to each other, but all its sides are not equal, and its angles are not right angles, as OPQN, fig. 16. — A rectangle is any quadrilateral figure whose angles are right angles, such as... | |
 | Peter Nicholson - Mathematics - 1825 - 1046 pages
...that which has its sides equal, but it* angles are not right angles. 33. A rhomboid, is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles. 34. All other four-sided figures besides these, are called Trapezinms.... | |
 | Euclid, John Playfair - Euclid's Elements - 1826 - 506 pages
...which has all its sides equal, but its angles are not right angles. XXVIII. A rhomboid, is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles. XXIX. XXX. B«ok I. Straight lines, which are in the same plane, and being... | |
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A rhomboid is that which has its opposite sides equal to one another, but all its sides are not equal, nor its angles right angles. 
