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The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; and each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds ; and these into thirds, &c.
A Treatise on Practical Surveying: Which is Demonstrated from Its First ... - Página 95
por Robert Gibson - 1818 - 478 páginas
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## The Modern Preceptor ; Or, a General Course of Education, Volumen2

John Dougall - 1810 - 580 páginas
...other four watches. In modern Europe the day is divided into 2* equal parts called hours, each hour into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. It has been found by experiment at London, in a spot elevated 113 feet above the level of the sea,...
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## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1811 - 508 páginas
...parts, called semicircles ; and is double the radius, as AB or DE. fig. 8. m *!6. The circumference of every circle is supposed to be divided into 360...called minutes, and each minute into 60 equal parts caled seconds, and these into thirds, fourths, &c. these parts being greater or less as the radius...
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## A New and Complete System of Arithmetic: Intended for the Use of Schools and ...

Caleb Alexander - 1813 - 144 páginas
...The circumference of every circle, is supposed tobe divided into 360 equal parts, called degree»; and each degree, into 60 equal parts, called minutes;...each minute, into 60 equal parts, called seconds, and these into thirds, fourtUs, &c. 14. Parallel lines are equidistant from each other. 15 A figure,...
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## A System of Natural Philosophy: in which the Principles of Mechanics ...

John Lee Comstock - 1813 - 340 páginas
...star a. 762. Each of the 12 signs of the zodiac is divided into 30 smaller parts, called degrees ; each degree into 60 equal parts, called minutes, and each minute into 60 parts, called seconds. The division of the zodiac into signs, is of very ancient date, each sign having...
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## The Theory and Practice of Surveying: Containing All the Instructions ...

Robert Gibson - 1814 - 508 páginas
...equal parts, called semicircles; and isdoublethe radius, as AB or DE. fig. 8. 16. The circumference of every circle is supposed to be divided into 360...and each minute into 60 equal parts called seconds, and tiiese into thirds, fourths, &c. these parts being greater or less as the radius is.17. A chord...
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## The Elements of Euclid; viz. the first six books, together with the eleventh ...

Euclides - 1814
...of the angle ABC. II. The circumference of a circle is supposed to be divided into 360 equal part* called degrees, and each degree into 60 equal parts...each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arch, of so many degrees, minutes,...
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## A Compendious System of Practical Surveying, and Dividing of Land: Concisely ...

1814 - 227 páginas
...DE. and it is a chord to both segments of the circle, as DFE and DGE. 12. A Circle is actually, or supposed to be divided into 360 equal parts, called...each degree into 60 equal parts, called Minutes ; and these into seconds, &c. 13. An Angle is so many degrees, as lines drawn from the centre of a circle,...
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## An Easy Introduction to the Mathematics: In which the Theory and ..., Volumen2

Charles Butler - 1814
...angle. It is usual to divide the whole circumference into 360 equal parts called degrees, to subdivide each degree into 60 equal parts called minutes, and...each minute into 60 equal parts called seconds, &c. wherefore, if an angle at the centre be subtended by an arc which consists of suppose 30 degrees, that...
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## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclides - 1816 - 528 páginas
...called the measure of the angle ABC. II. The circumference of a circle is supposed to be divided fnto 360 equal parts called degrees, and each degree into...each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any arc h, of so many degrees, minutes,...
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## A System of Universal Geography: For Common Schools: in which Europe is ...

Nathaniel Dwight - 1816 - 213 páginas
...A. The circumference of every circle is supposed to be divided into 360 equal parts called degrees ; each degree into 60 equal parts called minutes ; and each minute into 60 seconds. Q. What is a meridian ? A. It is a great circle cutting the equator at right angle's', and...
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