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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.
The Elements of Euclid: The Errors, by which Theon, Or Others, Have Long Ago ... - Σελίδα 3
των Robert Simson - 1762 - 466 σελίδες
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## Moffatt's pupil teachers' course (ed. by T. Page). Candidates, 2nd (-4th) year

Moffatt and Paige - 1879 - 428 σελίδες
...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 of the circle. 1 7. A diameter of a circle is a straight line...

## The Elements of Plane and Solid Geometry: With Chapters on Mensuration and ...

Isaac Sharpless - 1879 - 282 σελίδες
...circle is a plane figure, enclosed 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. 31. These lines are called radii, and this point is the centre of the circle. 32. A diameter of a circle...

## Euclid, books i. & ii., with notes, examples, and explanations, by a late ...

Euclides - 1879 - 146 σελίδες
...plane figure contained by one line, which is called the circumference, and is such that ? straight lines drawn from a certain point within the figure to the circumference, are equal to one another. 1 6. And this point is called the centre of the circle. 17. A diameter of a circle is a straight line...

## The Elements of Euclid for the Use of Schools and Colleges: With Notes, an ...

Isaac Todhunter - 1880 - 426 σελίδες
...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 of the circle. 17. A diameter of a circle is a straight line...

## First principles of Euclid: an introduction to the study of the first book ...

T S. Taylor - 1880 - 152 σελίδες
...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. And that point is called the centre of the circle. General Enunciation. From the greater of two given...

## Class lessons on Euclid

Marianne Nops - 1882 - 278 σελίδες
...circle is a plane figure contained by one line called the circumference, and is such that all straight lines drawn from a certain point within the figure to the circumference are equal.' These lines are called radii (Lat. radius, the spoke of a wheel, which each resembles). 16. ' And this...

## The Elements of Euclid for the Use of Schools and Colleges: Comprising the ...

Euclid, Isaac Todhunter - 1883 - 428 σελίδες
...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 of the circle. 17. A diameter of a circle is a straight lino...

## Syllabus of plane geometry, books 1-3, corresponding to Euclid, books 1-4 ...

Mathematical association - 1883 - 86 σελίδες
...surface. DEF. 7. A plane figure is a portion of a plane surface enclosed by a line or lines. straight lines drawn from a certain point within the figure to the circumference are equal to one another. This point is called the centre of the circle. DEF. 9. A radius of a circle is a straight line drawn...

## Geometry for schools, comprising books i. and ii. of Euclid, with some ...

Euclides - 1883 - 176 σελίδες
...circle is a plane figure bounded by one line 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. 12. This point is called the centre of the circle. A radius is a straight line from the centre to the...

## Littell's Living Age, Τόμος 161

1884 - 862 σελίδες
...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. XVI. And this point [line] is called the centre of the circle [axis of the cone]. AXIOMS CALLED POSTULATES IN EUCLID. L...