| American periodicals - 1884 - 862 pages
...XV. A circle [cone of revolution with vertex at the eye] is a figure contained by one line [surface] **which is called the circumference, and is such that all straight lines** [angles] drawn from a certain point within the figure to the circumference are equal to one another.... | |
| Thomas Henry Eagles - 1885 - 404 pages
...times the square on CB. CHAPTER II. THE CIRCLE. EUCLID'S well known definition is " A circle is a plane **figure •contained by one line, which is called the...figure to the circumference are equal to one another** : and this point is called the centre of the circle". A radius of a circle is a straight line drawn... | |
| Euclid, John Casey - Euclid's Elements - 1885 - 340 pages
...circle is a plane figure formed by a curved line called the circumference, and is such that all right **lines drawn from a certain point within the figure to the circumference are equal to one another.** This point is called the centre. xxxin. A radius of a circle is any right line drawn from the centre... | |
| Euclides - 1885 - 340 pages
...circle is a plane figure formed by a curved line called the circumference, and is such that all right **lines drawn from a certain point within the figure to the circumference are equal to one another.** This point is called the centre. xxxm. A radius of a circle is any right line drawn from the centre... | |
| Wellington Salop, old hall sch - 1885 - 204 pages
...only length and breadth." We next discover that "a circle is a figure contained by straight lines, **and is such that all straight lines drawn from a certain point within** that circle are equal." We are sorry to say that the inventor of this forgot to draw a figure. We have... | |
| Association for the Improvement of Geometrical Teaching - Euclid's Elements - 1888 - 208 pages
...rectangle AP, PB together with the square on PQ. DEFINITIONS , OF BOOK III. DEF. i. A circle is a plane **figure contained by one line, •which is called the...circumference, and is such that all straight lines drawn** front a certain point within the figure to the circumference are equal to one another. This point is... | |
| George William Usill - Surveying - 1889 - 306 pages
...angle. 6. Acute Angle. — An acute angle is less than a right angle. 7. Circle. — A circle is a plane **figure contained by one line, which is called the circumference, and is such that all** lines drawn from a certain point within the figure to the circumference are equal to one another. 8.... | |
| James McCosh - Metaphysics - 1889 - 390 pages
...any length in a straight line ; " " There may be such a figure as a circle, that is, a plane figure **such that all straight lines drawn from a certain point within the figure** are equal to one another ; " and that " A circle may be described from any centre at any distance from... | |
| Edward Mann Langley, W. Seys Phillips - 1890 - 538 pages
...boundaries. A figure contained by three Straight lines is called a triangle. 15. A circle is a plane **figure contained by one line, which is called the...within the figure to the circumference are equal.** 16. This point is called the centre of the circle, and the straight line drawn from the centre to the... | |
| Euclid - Geometry - 1892 - 460 pages
...said to be equal in area, when they enclose equal portions of a plane surface. 11. A circle is a plane **figure contained by one line, which is called the...figure to the circumference are equal to one another** : this point is called the centre of the circle. A radius of a circle is a straight line drawn from... | |
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