Books Books A circle is a plane figure contained by one line, which is called the circumference, and is such, that all straight lines drawn from a certain point within the figure to the circumference are equal to one another : 16. And this point is called the centre... Mensuration of lines, areas, surfaces, and volumes - Page xiii
by Robert Rawson - 1856 ## Pure mathematics, Volume 1

Edward Atkins - 1874 - 424 pages
...any straight line drawn from the centre to the circumference is called a radius of the circle]. 1 7. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. 18. A semicircle is the figure contained by a diameter and the part of the circumference cut off by... ## The Elements of Euclid, containing the first six books, with a selection of ...

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...centre and terminated both ways by the circumference. 18. A semicircle is the figure contained by a diameter, and the part of the circumference cut off by... ## Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson, with ...

Robert Potts - Geometry, Plane - 1876 - 446 pages
...the center of the circle. xvn. A diameter of a circle is a straight line drawn through the center, and terminated both ways by the circumference. . •...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... ## Syllabus of Plane Geometry: (corresponding to Euclid, Books I-VI) ...

...9. A 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...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... ## Elements of geometry, based on Euclid, books i-iii

Edward Atkins - 1876 - 130 pages
...l,raight line drawn 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 cut off by... ## Elements of geometry, based on Euclid, book i

Edward Atkins - 1877 - 72 pages
...any straight line drawn from the centre to the circumference is called a radius of the circle]. 1 7. A diameter of a circle is a straight line drawn through...centre, and terminated both ways by the circumference. 18. A semicircle is the figure contained by a diameter and the part of the circumference cut off by... ## Natural philosophy for beginners

Isaac Todhunter - 1877 - 442 pages
...of the 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...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... ## Natural Philosophy for Beginners: With Numerous Examples, Part 1

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... ## Elementary geometry

James Maurice Wilson - 1878 - 450 pages
...Def. 9. A 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...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... 