 | Elias Loomis - Calculus - 1851 - 300 pages
...cos. «, y=r sin. v. SECTION IT. ON THE CIRCLE. (32.) A CIRCLE is a plane figure bounded by a line, every point of which is equally distant from a point within called the center. This bounding line is called the circumference of the circle. A radius of a circle is a straight line... | |
 | Sir Henry Edward Landor Thuillier - Surveying - 1851 - 826 pages
...opposite. The Diagonals of a quadrilateral are the straight lines which join its opposite angles. A Circle is a plane figure bounded by a curved line called the Circumference, every part whereof is equally distant from a point within the same figure called the Centre, thus : ABDE... | |
 | Thomas Kentish - Geometrical drawing - 1852 - 258 pages
...twelve, a dodecagon. A triangle is sometimes called a trigon ] and a quadrilateral, a tetragon. A circle is a plane figure bounded by a curved line called the circumference, which is everywhere equidistant from the centre. A right line passing through the centre, and meeting... | |
 | John William Norie - Nautical astronomy - 1852 - 844 pages
...which hath length, breadth, and thickness, and its bounds or extremes are Superficies. X. A CIRCLE is a plane figure bounded by a curved line, called the CIRCUMFERENCE, as ABD, which is in every part equally distant from a point within it, called the CENTRE, as c ; it... | |
 | Ezra S. Winslow - Business mathematics - 1853 - 264 pages
...parameter. A Sphere, or globe, is a perfectly round substance — a solid contained under a curved surface, every point of which is equally distant from a point within, called the centre. Its axis, or diameter, is any right line passing from a side through the centre to the... | |
 | Thomas Kentish - Mathematical instruments - 1854 - 268 pages
...twelve, a dodecagon. A triangle is sometimes called a trigon ; and a quadrilateral, a tetragon. A circle is a plane figure bounded by a curved line called the circumference, which is everywhere equidistant from the centre. A right line passing through the centre, and meeting... | |
 | Charles Davies, William Guy Peck - Electronic book - 1855 - 592 pages
...two straight lines cannot include a space. A circle is a portion of a plane bounded by a curved line, every point of which is equally distant from a point within, called the centre. 1 The curve is called the circumference, or in common language, the circle. So that in... | |
 | John Brocklesby - Astronomy - 1855 - 394 pages
...centre, (Latin) out of the centre. 19. A SPHERE. 'A sphere is a solid, bounded by a curved surface, every point of which is equally distant from a point within, called the centre; every line passing through this centre, and limited by the surface, is a diameter. The... | |
 | John Fair Stoddard - Arithmetic - 1856 - 312 pages
...ten, a DECAGON ; that of twelve, a DODECAGON, &c. A CIRCLE is a plane, terminated by a curved line, every point of which is equally distant from a point within, called the centre. The curved line is called the circumference. The DIAMETER of a circle is a line passing... | |
 | Roswell Chamberlain Smith - Arithmetic - 1856 - 334 pages
...distance round it ; and is found by adding together all the sides that Fig. 14. bound it. 34. A CIRCLE is a plane figure bounded by a curved line, called the Circumference or Periphery ; which is every where equally distant from a certain point within it, called the CENTRE.... | |
| |
A circle is a plane figure bounded by a curved line, called the circumference, every point of which is equally distant from a point within called the center. 
