| William Chauvenet - Geometry - 1872 - 382 pages
...0. A radius of the sphere is any straight line drawn from the centre to the surface. A diameter is **any straight line drawn through the centre and terminated both ways by the** surface. Since all the radii are equal and every diameter is double the radius, all the diameters are... | |
| Euclid, Charles Peter Mason - Geometry - 1872 - 216 pages
...inclination to each other is such as is stated in the definition. Def. XVII. A diameter of a circle is a **straight line drawn through the centre, and terminated both ways by the** circumference. It is obvious that the half of a diameter is a radius. Def. XXI. A triangle is a plane... | |
| Euclides, James Hamblin Smith - Geometry - 1872 - 349 pages
...from the centre of a circle to the circumference is called a RADIUS. XV. A DIAMETER of a circle is a **straight line drawn through the centre and terminated both ways by the** circumference. Thus, in the diagram, O is the centre of the circle A BCD, OA, OB, OC, OD are Radii... | |
| Lewis Sergeant - 1873 - 182 pages
...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... | |
| Henry Major - Student teachers - 1873 - 592 pages
...circumference are equal to one another. XVI. This point is called 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... | |
| Euclides - 1874 - 120 pages
...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... | |
| Euclides - 1874 - 342 pages
...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... | |
| Association for the improvement of geometrical teaching - Geometry, Modern - 1876 - 66 pages
...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... | |
| Edward Atkins - 1876 - 132 pages
...from the centre to tho circuiufeivace "I a radius of the circle]. 1 7. A cliaittetcr 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... | |
| Isaac Todhunter - Philosophy - 1877 - 452 pages
...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... | |
| |