| Charles Guilford Burnham - 1841 - 312 sider
...having a circular base. 8. A sphere is a solid, bounded by one continued convex surface, every point **of which is equally distant from a point within, called the centre.** The sphere may be conceived to be formed by the revolution of a semicircle about its diameter, which... | |
| William Grier - 1842 - 308 sider
...is equiangular when all its angles are equal. When both these are equal, it is a regular figure. 45. **A Circle is a plane figure bounded by a curve line, called the Circumference,** which is everywhere equidistant from a certain point within, called its Centre. The circumference itself... | |
| J. M. Scribner - 1844 - 123 sider
...required the area. -Ans. SECTION II. MENSURATION OF THE CIRCLE AND ITS PARTS. DEFINITIONS. ART. 15. — 1. **A Circle is a plane figure bounded by a curve line,...circumference, every part of which is equally distant from a** certain point within, called the centre ; J1EBD (fig. 1) is a circle. 2. A Diameter of a circle is... | |
| Charles Haynes Haswell - 1844 - 264 sider
..." eight " A Nonagon . " nine *• A Decagon " ten " An Undecagon " eleven " A Dodecagon " twelve " **A CIRCLE is a plane figure bounded by a curve line, called the Circumference** (or Periphery). An Arc is any part of the circumference of a circle. A Chord is u right line joining... | |
| Peter Nicholson - 1845 - 333 sider
...irregular. and a square is one of the four ; the former being called a trigon, and the latter a tetragon. **A circle is a plane figure, bounded by a curve line, called the circumference,** which is every where equi-distant, from a certain point within, called its centre. The radius of a... | |
| John Lee COMSTOCK - 1846 - 477 sider
...or spherical body, more usually called a sphere, bounded by one uniform convex surface, every point **of which is equally distant from a point within, called the centre.** GNOMON. An apparatus used by the ancients for finding the altitudes and declinations of the celestial... | |
| Frederic A. Adams - 1846 - 212 sider
...and parallel. The diagonal divides it into two equal parts. A circle is a figure bounded by a curved **line, called the circumference, every part of which is equally distant from** the centre. A straight line from the centre to the circumference is called the radius. The diameter... | |
| James Robinson (of Boston.) - 1847
...pentagon. ED 34. The perimeter of a figure is the sum of all its sides. 35. A CIRCLE is a plane surface **bounded by a curve line, called the circumference...part of which is equally distant from a point within** the figure, called the centre of the circle. The figure CDE is a circle. 36. THE RADIUS of a circle... | |
| Charles William Hackley - 1847 - 103 sider
...the latter a tetragon. 40. A Diagonal is a line joining any two angles of a polygon not adjacent. 41. **A Circle is a plane figure bounded by a curve line, called the Circumference, every** point of which is equidistant from a certain point within, called the Center. 42. The Radius of a circle... | |
| Peter Nicholson, Joseph Gwilt - 1848 - 280 sider
...sides, and a square is one of four ; the former being caUed a trigon, and the latter a tetragon. 42. **A circle is a plane figure, bounded by a curve line, called the circumference,** which is everywhere equidistant from a certain point within it, called its centre. PLATE 3. 43. The... | |
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