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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.
First principles of Euclid: an introduction to the study of the first book ... - Page 18
by T S. Taylor - 1880

Euclid's Elements of geometry, books i. ii. iii. iv

Euclides - 1862 - 140 pages
...is the extremity of anything. 14. A figure is that which is inclosed by one or more boundaries. 15. A circle is a plane figure contained by one line,...point within the figure to the circumference are equal to one another. 16. And this point is called the centre of the circle. 17. A diameter of a circle is...

The school Euclid: comprising the first four books, by A.K. Isbister

Euclides - 1862 - 172 pages
...extremity of any thing.' XIV. A figure is that which is enclosed by one or more boundaries. XV. IA circle is a plane figure contained by one line, which...point within the figure to the circumference are equal to one another. XVI. And this point is called the centre of the circle. XVII. XVIII. A semicircle is...

The elements of plane geometry; or, The first six books of Euclid, ed. by W ...

Euclides - 1863 - 122 pages
...any thing. XIV. A figure is that which is enclosed by one or more boundaries. XV. A circle is a piano figure contained by one line, which is called the...within the figure to the circumference, are equal to one another. XVI. And this point is called the centre of the circle. XVII. A diameter of a circle...

Euclid's plane geometry, practically applied; book i, with explanatory notes ...

Euclides - 1863 - 74 pages
...points in the same plane, the figure is called a plane figure. 15. A circle (circulus, a ring, or hoop), is a plane figure contained by one line, which is called the circumference (circvmferri; to carry round), and is such that all straight lines drawn from a certain point ivithiu...

The school edition. Euclid's Elements of geometry, the first six books, by R ...

Euclides - 1864 - 448 pages
...the extremity of any thing. XIv. A figure is that which is enclosed by one or more boundaries. XV. A circle is a plane figure contained by one line,...within the figure to the circumference, are equal to one another. And this point is called the center of the circle. XVII. A diameter of a circle is...

The College Euclid: Comprising the First Six and the Parts of the Eleventh ...

Euclides - 1865 - 402 pages
...the extremity of any thing. XIV. A figure is that which is enclosed by one or more boundaries. XV. A circle is a plane figure contained by one line,...point within the figure to the circumference are equal to one another. XVI. And this point is called the centre of the circl*. XVII. A diameter of a circle...

Euclid's Elements of Geometry: Chiefly from the Text of Dr. Simson ...

Robert Potts - 1865 - 528 pages
...the extremity of any thing. XIV. A figure is that which is enclosed by one or more boundaries. XV. A circle is a plane figure contained by one line,...within the figure to the circumference, are equal to one another. XVI. And this point is called the center of the circle. xvn. A diameter of a circle...

The Constructive arithmetic

James A. Christie - 1865 - 454 pages
...WORKED our. What is the diameter of a circle containing 70- ao. 2- rd. 2976 po. statute measure 1 i "A circle is a plane figure, contained by one line,...point within the figure to the circumference are equal to one another. And this point is called the centre of the circle. The diameter of a circle is a straight...