...Sphere, or globe, is a solid bounded by one uniform 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 rotation of a semi-circle about its diameter. The.i4.ra of a solid is a line, or imaginary...

...hexagonal, 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 remains fixed. 9. The axis of a...

...the measure of angles. DEFTJWTIOW3. 90. THE circumfrence of a circle is a curved line all the ipoints of which are equally distant from a point within called the centre. The circle is the space terminated by this curved line*. Fig. 46. 91. Every straight line CA, CE, CD (Jig....

...a3. BOOK VII. THE SPHERE. Definitions. I. The sphere is a solid terminated by a curve surface, a1' the points of which are equally distant from a point within, called the centre. D The sphere may be conceived to be generated by the revolution of a semicircle DAE about its diameter...

...the Circle and the Measure of Angles. DEFINITIONS. ^0. THE circumference of a circle is a curved line all the points of which are equally distant from a point within called the centre. The circle is the space terminated by this curved line*. 46. 91. Every straight line CA, CE, CD (fig. 46),...

...Circle and the Measure of Angles. DEFINITIONS. ,, . 90. THE circumference of a circle is a curved line all the points of which are equally distant from a point within called the centre. The circle is the space terminated by this curved line*. 91. Every straight line CA, CE, CD (fig. 46),...

...the Circle and the Measure of Angles. DEFINITIONS. 90. THE circumference of a circle is a curved line all the points of which are equally distant from a point within called the centre. The circle is the space terminated by this curved line*. Fig. 46. 91. Every straight line CA, C£, CD (fig....

...properties very nearly the same as those which we have established in the present book. (230) DBF. — A sphere is a solid terminated by a curved surface,...all the points of which are equally distant from a certain point within it, called its centre. A sphere may be conceived to be produced by the revolution...

...p : : A2 : a2. BOOK VII. THE SPHERE. Definitions. 437. The sphere is a solid terminated by a curve surface, all the points of which are equally distant from a point within, called the centre. D The sphere may be conceived to be generated by the revolution of a semicircle DAE about its diameter...

...described by the point B the circumference of a circle, which we define to be — a curved line fill the points of which are equally distant from a point within called the centre — . The whole space enclosed is called a circle, the moving line AB a radius, and the fixed point A the centre....