| Isaac Todhunter - Spherical trigonometry - 1879 - 176 pages
...sphere. The straight line which joins any point of the surface with the centre is called a radius. **A straight line drawn through the centre and terminated both ways by the** surface is called a diameter. 2. The section qf the surface of a sphere made by any plane is a circle.... | |
| J. G - 1878 - 408 pages
...of the centre, we know the position of the sphere, Two sphe.es are equal when their radii are equal. **A straight line drawn through the centre and terminated both ways by the** surface is called a diameter. A sphere is supposed to be engendered by the revolution of a semicircle... | |
| Joseph Wollman - 1879 - 120 pages
...Section I., as these two questions were given that year, (c) This definition is incomplete. A diameter **of a circle is a straight line drawn through the centre, and terminated both ways by the circumference.** The following statements are incorrect : — (1) If unequals be added to unequals the wholes are unequal.... | |
| Euclides - 1879 - 146 pages
...circumference, are equal to one another. 1 6. 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.** [A radius is a straight line drawn from the centre to the circumference, and is therefore half the... | |
| Moffatt and Paige - 1879 - 426 pages
...circumference are equal to one another. 16. And this point is called the centre of the circle. 1 7. A diameter **of a circle is a straight line drawn through the centre and terminated both ways by the circumference.** 1 8. A semicircle is the figure contained by a diameter and the part of the circumference cut off by... | |
| David Bain - Geometry - 1879 - 36 pages
...Radius (plural radii) is any straight line drawn from the centre to the circumference. 28. A Diameter **of a circle is a straight line drawn through the centre, and terminated** at both ends by the circumference. The diameter, which is equal to twice the radius, divides the circle... | |
| Isaac Sharpless - Geometry - 1879 - 282 pages
...lines are called radii, and this point is the centre of the circle. 32. A diameter of a circle is the **straight line drawn through the centre, and terminated both ways by the** cuctnnference. 33. A semicircle is the figure contained by the diameter and the part of the circumference... | |
| Euclides, Frederick Burn Harvey - Geometry - 1880 - 178 pages
...90 degrees ; an obtuse angle contains more, and an acute angle less, than 90 degrees. 16. A DIAMETER **OF A CIRCLE is a straight line drawn through the centre, and terminated both ways by the circumference.** Thus BAG and DAE are diameters. A straight line drawn in a circle, not through the centre, and terminated... | |
| Isaac Todhunter - Euclid's Elements - 1880 - 426 pages
...circumference are equal to 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.** [A radius of a circle is a straight line drawn from the centre to the circumference.] 18. A semicircle... | |
| James Thomson - 1880 - 412 pages
...figure, called the CENTRE, are equal to each other. Any of those equal lines is called a RADIUS : and a **line drawn through the centre, and terminated both ways by the circumference,** is called a DIAMETER. Hence, a diameter is evidently double of a radius. XVIII. If the ends of a thread,... | |
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