| Euclides - 1853
...of the three angles of which is an acute angle. XXX. A square is defined to be a four- sided figure **which has all its sides equal and all its angles right angles. XXXI. An oblong is** a four- sided figure which has all its angles right angles, but has not all its sides equal. XXXII.... | |
| Euclid - 1853 - 136 sider
...the line AB. SCHOLIUM. The definition of a square, as given by Euclid, viz. " a four-sided figure, **which has all its sides equal, and all its angles right angles"** is more than sufficient, and really involves a theorem. It is only necessary to state (d) Constr. (e)... | |
| William Somerville Orr - 1854
...than a right angle. An acute-angled triangle has each of its angles acute, or less than a right angle. **Of four-sided figures, a square is that which has...its sides equal, and all its angles right angles.** If the four sides are equal, and only one of the angles affirmed to be right, the other three angles... | |
| Thomas Lund - 1854 - 362 sider
...notions and principles. For example, in the former Part a square was defined to be "a parallelogram, **which has all its sides equal and all its angles right angles";** in this Part such a construction is required to be actually made under certain given circumstances.... | |
| Euclides - 1855
...two preceding species of triangles have each two acute angles, as will be shown in the sequel. XXX. **Of four-sided figures, a square is that which has...its sides equal, and all its angles right angles.** This definition is redundant. If the general definition annexed to the 34th Prop, of this book be considered,... | |
| John Playfair - 1855 - 318 sider
...sided figures, a square is that which has all its sides equal and all its angles right angles. 26. **An oblong is that which has all its angles right angles, but has not** a]] its sides equal. 27. A rhombus is that which has all its sides equal, but its angles are not right... | |
| Noble Heath - 1855 - 455 sider
...having all its angles right angles, hut only its opposite sides equal. 107. The Pythagorean Tahle, **which has all its sides equal, and all its angles right angles,** is a square. As the divisions of its sides are also equal, suppose each to be 1 inch long : then, as... | |
| Robert Rawson - 1856
...which has an obtuse angle. . An acute-angled triangle is that which has three acute s\ angles. " 7\ **Of four-sided figures, a square is that which has...angles right angles, but has not all its sides equal.** xxxn. A rhombus is that which has all its sides equal, but its angles are not right angles. XXXIII.... | |
| charles haslett - 1856
...inches, <fcc, | Mensuration of Superficies. Square. Rectangle. :B A SQUARE is a quadrilateral figure, **which has all its sides equal, and all its angles right angles.** A RECTANGLE is a four-sided figure, which has its angles, right angles, and its opposite sides parallel.... | |
| Charles Haslett - 1855
...cubic feet, inches, <iu. mensuration of Superficies. Rectangle. A SQUARE is a quadrilateral figure, **which has all its sides equal, and all its angles right angles.** A RECTANGLE is a four-sided figure, which has its angles, right angles, and its opposite sides parallel.... | |
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