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A Circle is a plane figure bounded by a curve line, called the Circumference, which is everywhere equidistant from a certain point within, called its Centre.
A Practical System of Mensuration of Superficies and Solids ... - Page 39
by J. M. Scribner - 1844 - 123 pages

The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - Arithmetic - 1785 - 350 pages
...Angles is called a Pentagon. A regular Polygon, is a Figure with equal Sides and equal Angles. Fig. 7. A Circle is a plane Figure bounded by a curve Line called the Circumference, every Part whereof is equally diftant from a Point within called the Center. A Diameter, AB, of a Circle, is a...

A Treatise on Mensuration, Both in Theory and Practice

Charles Hutton - Measurement - 1788 - 728 pages
...and the latter a tetragon. Pentagon Hexagon Heptag on Oflagon Nonagon Decagon Undecagon Dodecagon 44. A circle is a plane figure bounded by a curve line, called the circumference, which is every where equi-diftant from a certain point •yvidiin, called its center. NB The circumference...

Mathematics: Compiled from the Best Authors and Intended to be the ..., Volume 1

Mathematics - 1801 - 446 pages
...and the latter a tetragon, Pentagon. Hexagon. Heptagon. NonagQn, Decagon. Undecagpn^ Dodecagon. 44. A circle is a plane figure, bounded by a curve line, called the circumference, which is every where equidistant from a certain point within, called the centre* NOTE. The circumference...

The shipwright's vade-mecum [by D. Steel].

David Steel - 1805 - 390 pages
...triangle and parallelogram have equal bases and equal altitudes, the triangle is half the parallelogram. A Circle is a plane figure, bounded by a curve line called the Circumference, every part whereof is equally distant from a point within the same figure, called the Centre. Any part of the...

The Tutor's Guide: Being a Complete System of Arithmetic; with Various ...

Charles Vyse - Arithmetic - 1806 - 342 pages
...Sides or Anglos, is called a Pentagon. A regular Polygon is a Figure with equal Sides and equal Fig. 7. A Circle is a Plane Figure bounded by a Curve Line called the Circumference, eve y Part whereof is equally distant from a Point within, called the Centre. A Diameter, AB, of a...

Astronomy Explained Upon Sir Isaac Newton's Principles: And Made Easy to ...

James Ferguson - Astronomy - 1809 - 574 pages
...epochs, divisions, subdivisions, and measures. Circle, is a plane figure bounded by a uniformly-curved line called the circumference, every part of which is equally distant from a certain point within the same, called the centre. Diameter is a right line passing through the centre, and terminated on...

The principles of architecture, Volume 1

Peter Nicholson - 1809 - 426 pages
...sides, and a. square is one of four; the former being called a trigon, and the latter a tetragon. 42. A circle is a plane figure, bounded by a curve line, called the circumference, which is every-where equidistant from a certain point within called its centre. B 2 43. The 43. The...

Pocket Encyclopedia: Or, A Dictionary of Arts, Sciences, and ..., Volume 3

Edward Augustus Kendall - Encyclopedias and dictionaries - 1811 - 516 pages
...perpendicular to that on which it stands." " A triangle is a plain figure, bounded by three lines or sides." " A circle is a plane figure, bounded by a curve line...circumference, every part of which is equally distant from a point within called the centre." An axiom is a manifest truth not requiring a demonstration : The following...