| J. M. Scribner - Mechanical engineering - 1849 - 264 pages
...revolution of an ellipse about either of its axes. 6. A sphere is a solid, terminated by a curved surface, **all the points of which are equally distant from a point within, called** the center. A sphere may be described by the revolution of a semicircle about a diameter. 7. A radius... | |
| James Bates Thomson - Arithmetic - 1850 - 350 pages
...diameter is given. (Leg. Y. 11. Sch.) Multiply the given diameter by 3.14159. Note. — The.circumferenee **of a circle is a curve line, all the points of which...distant from a point within, called the centre. The** diameter of a circle is a straight line which passes through the centre, and is terminated on both... | |
| Charles Davies - Geometry - 1850 - 236 pages
...an acute angle. 23. An obtuse angle is greater than a right angle. Thus, DBC is an obtuse angle. 24. **The circumference of a circle is a curve line all the points of which are equally distant from a** certain point within called the centre. Thus, if all the points of the curve AEB are equally distant... | |
| Charles Davies - Geometry - 1850 - 216 pages
...the diagonals of a rhombus bisect each other at right angles. BOOK II, OF THE CIRCLE, DEFINITIONS. 1. **THE circumference of a circle is a curve line, all the points of which are equally distant from a** certain point within called the centre. 2. The circle is the space bounded by this curve line. 3. Every... | |
| Anna Cabot Lowell - Astronomy - 1850 - 412 pages
...of a Planet. Sidereal and Apparent Time. § 1. A sphere is a solid terminated by a curved surface, **all the points of which are equally distant from a point within called the centre. The** radius of a sphere is a straight line drawn from the centre to a point in the surface ; the diameter,... | |
| George Roberts Perkins - Geometry - 1850 - 332 pages
...prism; hence they will be their lines of contact. 7. A sphere is a solid terminated by a curve surface, **all the points of which are equally distant from a point within, called the centre. The** sphere m-ay be conceived to be generated by the revolution of a semicircle DAE about its diameter DE;... | |
| Adrien Marie Legendre - Geometry - 1852 - 436 pages
...said to be circumscribed about the pyramid. 9. The SPHERE is a solid terminated by a curved surface, **all the points of which are equally distant from a point within, called the centre. The** sphere may be generated by the revolution of a semicircle DAE, about its diameter DE : for, the surface... | |
| Charles Davies - Geometry - 1886 - 324 pages
...DBC is an acute angle23 An obtuse angle is greater than a right angle- Thus, DBC is an obtuse angle24 **The circumference of a circle is a curve line all the points of which** arc equally distant from a certain point within called the centre, Thus, if all the points of the curve... | |
| Charles Davies - Geometry - 1854 - 436 pages
...said to be circumscribed about the pyramid. 9. The SPHERE is a solid terminated by a curved surface, **all the points of which are equally distant from a point within, called the centre. The** sphere may be generated by the revolution of a semicircle DAE, about its diameter DE : for, the surface... | |
| James Bates Thomson - Arithmetic - 1855 - 422 pages
...circumference of a circle from its diameter. Multiply tlie diameter by 3.14159. (Leg. V. 11. Sch.) Note. — **The circumference of a circle is a curve line, all...distant from a point within, called the centre. The** diameter of a circle is a straight line which passes through the centre, and is terminated on Both... | |
| |