 | Euclides - 1838 - 264 pages
...equal, but its angles are not right angles. XXIX. A rhomboid is that which has its opposite sides / ~7 equal to one another, but all its sides are not / / equal, nor its angles right angles. /_ f XXX. , All other four-sided figures besides these, are called Trape2iums. XXXI. Parallel straight... | |
 | Euclides - Geometry - 1841 - 378 pages
...equal. XXXII. A ...in-ioI.us is that which has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid is that which has its opposite...sides are not equal, nor its angles right angles. XXXIV. Any other four-sided figure, besides these, is called a trapezium. XXXV. Parallel straight lines... | |
 | John Joseph Griffin - Crystallography - 1841 - 538 pages
...acute angle being exactly as much less than 90°, as the obtuse angle is greater. — -/), a rhomboid, has its opposite sides equal to one another, but all its sides are not equal, and its angles are not right angles. See the planes P of Model 11. — 7, a trapezium, is a four-sided... | |
 | John Joseph Griffin - Crystallography - 1841 - 536 pages
...acute angle being exactly as much less than 90°, as the obtuse angle is greater.— p, a rhomboid, has its opposite sides equal to one another, but all its sides are not equal, and its angles are not right angles. See the planes P of Model 11. — 7, a trapezium, is a four-sided... | |
 | Euclides - 1842 - 316 pages
...equal. XXXII. A rhombus is that which has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid is that which has its opposite...sides are not equal, nor its angles right angles. XXXIV. XXXV. Parallel straight lines are such as are in the same plane, and which, being produced ever... | |
 | John Playfair - Euclid's Elements - 1842 - 332 pages
...equal. 27. A rhombus is that which has all its sides equal, but its angles are not right angles. 28. A rhomboid is that which has its opposite sides equal...sides are not equal, nor its angles right angles. 29. All other four sided figures besides these, are called trapeziums. 30. Parallel straight lines... | |
 | Euclid - Geometry - 1845 - 218 pages
...XXXII. A rhombus, is that which has all its sides equal, but its angles are not right angles. XXX1I1. A rhomboid, is that which has its opposite sides equal...sides are not equal, nor its angles right angles. xxxiy. All other four-sided figures besides these, are called Trapeziums. XXXV. Parallel straight lines,... | |
 | Euclides - 1845 - 546 pages
...but its angles are not right angles. XXXIII. A rhomboid has its opposite sides equal to each other, but all its sides are not equal, nor its angles right angles. XXXIV. All other four-sided figures besides these, are called Trapeziums. XXXV. Parallel straight lines... | |
 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...equal. XXXII. A rhombus is that which has all its sides equal, but its angles are not right angles. XXXIII. A rhomboid is that which has its opposite...sides are not equal, nor its angles right angles. XXXIV. All other four-sided figures, besides these, are called trapeziums. XXXV. Parallel straight... | |
 | Great Britain. Admiralty - Geometry - 1846 - 128 pages
...XXXI. An oblong is that which has all its angles right angles, but has not all its sides equal. XXXII. XXXIII. A rhomboid is that which has its opposite...sides are not equal, nor its angles right angles. XXXIV. All other four-sided figures, besides these, ar called trapeziums. XXXV. Parallel straight lines... | |
| |
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. 
