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 Βιβλία Βιβλία 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. The Theory and Practice of Surveying: Containing All the Instructions ... - Σελίδα 45
των Robert Gibson - 1821 - 544 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## A Compendious and Complete System of Modern Geography: Or, A View of the ...

Jedidiah Morse - 1814 - 670 σελίδες
...and the diameter is equal to two radii, or the longest straight line, that can be drawn in a circle. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 minutes ; each minute into 60 seconds. An arc of a circle is the measure of an... ## 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 called minutes, and each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any... ## A Treatise on Surveying, Containing the Theory and Practice: To which is ...

John Gummere - 1814 - 346 σελίδες
...of a plane triangle, except the three angles, are given, the others are determined. 2. The periphery of every circle is supposed to be divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minnte into 60 equal parts, called seconds,... ## An Easy Introduction to the Mathematics: In which the Theory and ..., Τόμος 2

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... ## The Elements of Euclid: Viz. the First Six Books, Together with the Eleventh ...

Euclides - 1816 - 528 σελίδες
...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...60 equal parts called minutes, and each minute into 60 equal parts called seconds, &c. And as many degrees, minutes, seconds, &c. as are contained in any... ## A System of Universal Geography: For Common Schools: in which Europe is ...

Nathaniel Dwight - 1816 - 213 σελίδες
...parts ; and small circles, which divide it into unequal parts. Q. What are the degrees of a circle ? 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... ## An Introduction to Astronomy ...

John Bonnycastle - 1816 - 428 σελίδες
...and the equator, we are enabled to judge of the situation of the place with respect to its latitude. Every circle is supposed to be divided into 360 equal parts, called degrees, and every degree into sixty equal parts, called minutes; so that, from these considerations, you will readily... ## The complete measurer: or, The whole art of measuring, containing the ...

Thomas Keith - 1817
...the arc DE is the measure of the angle » BE, and the arc G n is the measure of the angle ABC. 14. 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 equal parts, called seconds.... ## A System of Universal Geography, for Common Schools: In which Europe is ...

Nathaniel Dwight - 1817 - 216 σελίδες
...Circles, which divide it into Unequal parts. Q. What are the Degrees of a Circle ?. A. The circumferer.ee 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 Treatise on Surveying: Containing the Theory and Practice : to which is ...

John Gummere - 1817 - 206 σελίδες
...determined. 2. The periphery 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 equal parts, called seconds, See. I 3. The measure of- an angle is the arc of a circle, contained...