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Βιβλία Βιβλία 1 - 10 από 180 για The circumference of every circle is supposed to be divided into 360 equal parts,....
" 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 Complete System of Practical Arithmetic, with Various Branches in the ... - Σελίδα 286
των William Taylor - 1800 - 519 σελίδες
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The Description and Use of the Globes, and the Orrery: To which is Prefixed ...

Joseph Harris - 1732 - 190 σελίδες
...Pole is placed, and the opppfite one is the Southern Hemifphere. The Aftronomers divide all Circles into 360 equal Parts called 'Degrees, each Degree into 60 equal Parts called Minutes, each Minute into 60 Seconds, &c. But befides this Divifion into Degrees, the Equir noftial is commonly...

A Treatise of Algebra in Two Books: The First Treating of the Arithmetical ...

Philip Ronayne - 1738 - 421 σελίδες
...Of DEFINITIONS. i. A Circle is fuppos'd to be r\ divided into 360 equal Parts, called Degrees j and each Degree into 60 equal Parts, called Minutes ;...and each Minute into 60 equal Parts, called Seconds 5 t£c. Any Portion \ of whofe Circumference is called an Arch, and is meafured by the Number of Degrees...

The Theory and Practice of Gauging: Demonstrated in a Short and Easy Method ...

Robert Shirtcliffe - 1740 - 283 σελίδες
...divided the Circumference of a Circle into 360 equal Parts, each of which they called a Degree ; and each Degree into 60 equal Parts called Minutes ; and each Minute into 60 Parts called Seconds, and fo on to thirds, fourths, &c. every Arch of a Circle, being denoted by the...

The Young Mathematician's Guide: Being a Plain and Easy Introduction to the ...

John Ward - 1747 - 480 σελίδες
...A Circle is -tJL vidcd into DEFINITIONS. fuppos'd to be di-. 360 equal Parts, called Degrees ; and each Degree into 60 equal Parts, called Minutes ;...and each Minute into 60 equal Parts, called Seconds, &V. Any Portion of whofe Circumference is called an Arch, and is meafured by the Number of Degrees...

Trigonometry, Plane and Spherical: With the Construction and Application of ...

Thomas Simpson - 1748 - 77 σελίδες
...2. The Periphery of every Circle is fuppofed 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, or fecond Minutes, &c. B G 3. Any Part AB of H the Periphery of the Circle is called an Arch, and is...

Instructions Given in the Drawing School Established by the Dublin Society ...

Joseph Fenn - 1769
...conceived to be divided into 360 equal parts, ivbicb are (ailed DEGREES ; and each of tbefe degrees into 60 equal parts, called MINUTES ; and each minute into 60 equal parts, called SECONDS 6fr. in con/equence of this bypotheßs, У the correfpondence eßabliflied between the arches, У the...

Elements of Trigonometry, Plane and Spherical: With The Principles of ...

John Wright (mathematician.) - 1772 - 251 σελίδες
...fuppofed to be divided into 360 equal parts, called degrees; each degree ifr fuppofed to be divided into 60 equal parts, called minutes ; and each minute into 60 equal parts, called feconds, &c. 5. Any angle HRB at the centre of a circle, is faid to be an angle of as many degrees,...

The Elements of Euclid, Viz: The Errors, by which Theon, Or Others, Have ...

Robert Simson - 1775 - 520 σελίδες
...circumference of a circle is fuppofed to be divided into H h ' 360 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 6e equal parts called feconds, &c. And as many degrees, minutes, feconds, &c as are contained in any...

The First Six Books: Together with the Eleventh and Twelfth

Euclid - 1781 - 520 σελίδες
...between the tan.ngles HKB, ABC will \.E arc right ; therefore rill• 360 equal parts called degrees, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called feconds, &c- And as many degrees, minutes, feconds, &c. as are contained in any arch, of fo many degref.s...

A Complete Treatise on Practical Mathematics: Including the Nature and Use ...

John McGregor (teacher of mathematics.) - 1792 - 431 σελίδες
...trigonometry. The circumference of any circle, is divided into 360 equal parts, called degrees, and each degree into 60 equal parts, called minutes, and each minute into 60 equal parts, called féconds, and fo on. JVi/f, Degrees are frequently marked °, and minutes '. Thus, 30 degrees, 14 minutes,...




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