| 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... | |
| Ralph Smyth, 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 - 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
...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 - 520 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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