| Lewis Sergeant - 1873 - 182 pages
...the straight lines drawn from the centre to the circumference are called radiuses.t 36. A diameter **of a circle is a straight line drawn through the centre, and terminated both, ways by the circumference.** 37. "When a parallelogram is subdivided into four parts by straight lines parallel to the sides and... | |
| Euclides - 1874 - 342 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...diameter, and the part of the circumference cut off by** ths diameter. 19. The centre of a semicircle is the same with that of the circle. 20. Rectilineal figures... | |
| Walter Smith - Blackboard drawing - 1879 - 388 pages
...the opening of the compasses with which the circle was struck. Diameter of a Circle — -A diameter **of a circle is a straight line drawn through the centre* and** touching the circumference on both sides. (.See p. 107.) Thus the diameter is double the radius. It... | |
| Association for the improvement of geometrical teaching - Geometry, Modern - 1876 - 66 pages
...radius of a circle is a straight line drawn from the centre to the circumference. DEF. io. h. diameter **of a circle is a straight line drawn through the centre and terminated both ways by the circumference.** [An angle is a simple concept incapable of definition, properly so called, but the nature of the concept... | |
| Robert Potts - Geometry, Plane - 1876 - 446 pages
...straight line drawn through the center, and terminated both ways by the circumference. . • -. . xvin. **A semicircle is the figure contained by a diameter and the part** *f the circumference cut on by the diameter. XIX. The center of a semicircle is the same with that... | |
| Isaac Todhunter - 1877 - 442 pages
...circle. A radius of a circle is a straight line drawn from the centre to the circumference. A diameter **of a circle is a straight line drawn through the centre and terminated both ways by the circumference.** An arc of a circle is any part of the circumference. 20. In Arts. 15. ..19 we have spoken of certain... | |
| Euclides - 1877 - 58 pages
...extremity of anything ; and a figure is that which is inclosed by one or more boundaries. 25. A diameter **of a circle is a straight line drawn through the centre, and terminated both ways** liy the circumference. 26. A semicircle is a figure contained by a diameter and the part of the circumference... | |
| Isaac Todhunter - Philosophy - 1877 - 452 pages
...radius of a sphere is a straight line drawn from the centre to the surface. A diameter of a sphere **is a straight line drawn through the centre and terminated both ways by the** surface. A sphere is sometimes called a globe : marbles and billiard balls are familiar examples of... | |
| James Maurice Wilson - 1878 - 450 pages
...radius of a circle is a straight line drawn from the centre to the circumference. Def. 10. A diameter **of a circle is a straight line drawn through the centre and terminated both ways by the circumference.** Def. ir. When two straight lines are drawn from the same point, they are said to contain, or to make... | |
| Āryabhaṭa - 1878 - 100 pages
...: Prop. 1. is a circle.] VII. And this point is called the centre of the circle. VIII. [A diameter **of a circle is a straight line drawn through the centre, and terminated both ways by the** circumfer|nce. The straight line AC in figure : Prop. 1. is a diameter.] IX. A radius is a straight... | |
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