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 Βιβλία Βιβλία 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 : XVI. The first six books of the Elements of Euclid, with numerous exercises - Σελίδα 2
των Euclides - 1853 - 147 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## The Oldhallian

...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... ## The Elements of Plane Geometry:pPart I(corresponding to Euclid Books I.-II ...

...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... ## Practical Surveying: A Text-book for Students Preparing for Examinations Or ...

George William Usill - 1889 - 272 σελίδες
...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.... ## First and Fundamental Truths: Being a Treatise on Metaphysics

James McCosh - 1889 - 360 σελίδες
...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... ## The Harpur Euclid: An Edition of Euclid's Elements

Edward Mann Langley, W. Seys Phillips - 1890 - 515 σελίδες
...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... ## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclid - 1892 - 518 σελίδες
...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... ## Mining: A Journal Devoted to the Interests of Mines and Mining Students, Τόμος 2

1894
...all its sides equal, and its angles equal. rig. IB. A Circle is a plane figure contained or bounded by one line which is called the circumference, and is such that all straight lines from a certain point within the figure to the circumference are equal to one another. This point is... ## Colliery Surveying: A Primer Designed for the Use of Students and Colliery ...

Thomas Aloysius O'Donahue - 1896 - 163 σελίδες
...which has all its sides equal, and its angles equal. A circle is a plane figure contained or bounded by one line, which is called the circumference, and is such that all straight lines from a certain point within the figure to the circumference are equal to one another. This point is... ## Elementary Manual on Steam and the Steam Engine

Andrew Jamieson - 1897 - 290 σελίδες
...CIRCLE is a plane figure bounded by one line, which is called the circumference ; and is such, t/tat all straight lines drawn from, a certain point within...figure to the circumference are equal to one another. This point is called tlie centre of the circle. A DIAMETER of a circle is a straight line drawn through... ## Mathematics: Mechanic's bids and estimates. Mensuration for beginners. Easy ...

Seymour Eaton - 1899 - 362 σελίδες
...the triangle is said to be equilateral. 5. A circle is a plane (flat) figure contained by one line called the circumference, and is such that all straight...within the figure to the circumference are equal. This point is called the center of the circle. 6. The radius of a circle is any straight line drawn...