 A Parallelogram is a quadrilateral which has both its pairs of opposite sides parallel. And it takes the following particular names, viz., Rectangle, Square, Rhombus.  The Sciences Epitomized - Page 78by J. J. Hooke - 1870 - 97 pagesFull view - About this book
 | Mathematics - 1801 - 446 pages
...triangle has *n« obtuse angle. 30. An acute-angled triangle has all its three angles acute. • • 31. A figure of four sides and angles is called a quadrangle, or a quadrilateral. 32. A. parallelogram is a quadrilateral, which has botjj pair of its opposite sides... | |
 | Charles Hutton - Mathematics - 1816 - 610 pages
...Obtuse-angled Triangle has one obtuse angle. . 30. An Acute-angled Triangle has all its three angles acute. 31. A figure of Four sides and angles is called a Quadrangle, or a Quadrilateral. 32 A Parallelogram is a quadrilateral which has both its pairs of opposite sides parallel.... | |
 | Charles Hutton - Mathematics - 1822 - 616 pages
...Obtuse-angled Triangle has one obtuse angle. 30. An Acute-angled Triangle has all its three angles acute. 31. A figure of Four sides and angles is called a Quadrangle, or a Quadrilateral. 32. A Parallelogram is a quadrilateral which has both its pain of opposite sides parallel... | |
 | Edward Shaw - Architecture - 1832 - 402 pages
...all its angles acute, as S or T. i и 29. An obtuse angled triangle has one obtuse angle, as U. 30. A figure of four sides and angles, is called a quadrangle, or quadrilateral, as V, W, X, Y, Z, &. 31. A parallelogram is a quadrilateral, which has both pairs of its opposite sides... | |
 | William Grier - Mechanical engineering - 1832 - 366 pages
...Obtuse-angled Triangle has one obtuse angle. 30. An Acute-angled Triangle has all its three angles acute. 31. A figure of four sides and angles is called a Quadrangle, or a Quadrilateral. 32. A Parallelogram is a quadrilateral which has both its pairs of opposite sides... | |
 | Industrial arts - 1835 - 398 pages
...Obtuse-angled Triangle has one obtuse angle. 30. An Acute-angled Triangle ha* all its three angles acute. 31. A figure of four sides and angles is called a Quadrangle, or a Quadrilateral. 32. A Parallelogram is a quadrilateral which has both its pairs of opposite sides... | |
 | Edward Shaw - Architecture - 1836 - 438 pages
...triangle has all its angles acute, as S or T. 29. An obtuse angled triangle has one obtuse angle, asU. 30. A. figure of four sides and angles, is called a quadrangle, or quadrilateral, as V, W, X, Y, Z, &. 31. A parallelogram is a quadrilateral, which has both pairs of its opposite sides... | |
 | William Grier - Mechanical engineering - 1836 - 384 pages
...Obtuse-angled Triangle has one obtuse angle. 30. An Acute-angled Triangle has all its three angles acute. 31. A figure of four sides and angles is called a Quadrangle, or a Quadrilateral. 32. A Parallelogram is a quadrilateral which has both its pairs of opposite sides... | |
 | Benjamin Greenleaf - Arithmetic - 1839 - 356 pages
...obtuse-angled triangle has one obtuse angle. 29. An acute-angled triangle has its three angles acute. 30. A figure of four sides and angles is called a quadrangle, or a quadrilateral. 31. A parallelogram is a quadrilateral, which has both its pairs of opposite sides... | |
 | Benjamin Greenleaf - Arithmetic - 1841 - 334 pages
...obtuse-angled triangle has one obtuse angle. 29. An acute-angled triangle has its three angles acute. 30. A figure of four sides and angles is called a quadrangle, or a quadrilateral. 31. A parallelogram is a quadrilateral, which has both its pairs of opposite sides... | |
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