 | Conic sections - 1850 - 124 pages
...then is C the centre, AA' the transverse axis, and BB' the conjugate axis of the ellipse A.BA'B'. III. The distance from the centre to either focus is called the eccentricity. Thus FC, or its equal F'C, is the eccentricity of the ellipse ABA'B'. IV. A line drawn from any point... | |
 | Sir Henry Edward Landor Thuillier - Surveying - 1851 - 828 pages
...called the Centre, thus : ABDE is the circumference and C the centre. The Diameter of a circle is a straight line drawn through the centre, and terminated •*' both ways by the circumference, thus : AB is the diameter of the circle ADBE. The Radius of a circle is a straight line... | |
 | Euclides - 1852 - 152 pages
...above figures A is the centre of the circle; B is not the centre.] XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained by a diameter and the part of the circumference... | |
 | James B. Dodd - Arithmetic - 1852 - 410 pages
...radius of a circle is a straight line drawn from the centre to the circumference ; and the diameter is a straight line drawn through the centre, and terminated both ways by the circumference. § 392. An arc of a circle is any part of the circumference ; and the chord of an arc... | |
 | Euclides - Geometry - 1853 - 334 pages
...ABC, or DBC, &c. F is the centre ; and FA, FB, FC, &c., are radii. XVII. A diameter of a circle is any straight line drawn through the centre and terminated both ways by the circumference. XVIII. A semicircle is the figure contained by any diameter of a circle, and by either... | |
 | Euclides - 1853 - 146 pages
...another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. XVIII. A semicircle is the figure contained by a diameter and the part of the circumference... | |
 | Euclides - Geometry - 1853 - 176 pages
...another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. XVIII. A semicircle b the figure contained by a diameter and the part of the circumference... | |
 | James B. Dodd - 1853 - 402 pages
...radius of a circle is a straight line drawn from the centre to the circumference; and the diameter is a straight line drawn through the centre, and terminated both ways by the circumference. 5 392. An arc of a circle is any part of the circumference; and the chord of an arc... | |
 | Royal Military Academy, Woolwich - Mathematics - 1853 - 400 pages
...one another. 16. And this point is called the centre of the circle. 17. A diameter of a circle is a straight line drawn through the centre, and terminated both ways by the circumference. 18. A semicircle is the figure contained by a diameter and the part of the circumference... | |
 | Thomas Lund - Geometry - 1854 - 522 pages
...which measures the distance from the centre to the circumference is called the radius of the circle. Any straight line drawn through the centre and terminated both ways by the circumference is called a diameter of the circle. Thus, in the fig. here traced, the area or surface... | |
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... is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre of the circle. 
