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Bøker Bok 110 av 180The 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, and each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds, and these into thirds, fourths, &c. "
Course of Civil Engineering: Comprising Plane Trigonometry, Surveying, and ... - Side 1
av John Gregory - 1842 - 301 sider
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A Compleat Treatise of Practical Navigation Demonstrated from It's First ...

Archibald Patoun - 1734 - 414 sider
...of every Circle is fuppofed to be divided into 360 equal Parts, called Degrees ; and each Degree is divided into 60 equal Parts, called Minutes ; and each Minute into 60 e?ual Parts, called Seconds; and 'thefe into Thirds, 'ourtbs, &c, thefe Parts being greater or lefs...
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A Treatise of Algebra in Two Books: The First Treating of the Arithmetical ...

Philip Ronayne - 1738 - 421 sider
...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...
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The Young Mathematician's Guide: Being a Plain and Easy Introduction to the ...

John Ward - 1747 - 480 sider
...-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...
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Trigonometry, Plane and Spherical: With the Construction and Application of ...

Thomas Simpson - 1748 - 77 sider
...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...
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A New Introduction to the Mathematicks: Being Essays on Vulgar and Decimal ...

Benjamin Donne - 1758 - 372 sider
...called a Day ; which Day they fubdivided into 24 equal Parts called Hours, and each of thefe again into 60 equal Parts called Minutes, and each Minute into 60 equal Parts called Seconds, &c. Further, the Time which is elapfed between the Inftant when the Sun is in the Equinox, or firlt Point...
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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...
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Instructions Given in the Drawing School Established by the Dublin Society ...

Joseph Fenn - 1769
...to be divided into 360 equal parts, -which are callea DEGREES ¡ and each of tbefe degrees into ¿o equal parts, called MINUTES ; and each minute into 60 equal parts, called SECONDS &c. in confequence of ibis bypotheßs, У the correjpondence eßablijhed bet-ween the arches, У the angles,...
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The Young Mathematician's Guide: Being a Plain and Easy Introduction to the ...

John Ward - 1771 - 480 sider
...DEF INITIONS. 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, &c. Any Portion of whc/e Circumference is called an Arch, and is mcaof Degrees it contains.' 2. A Chord...
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Elements of Trigonometry, Plane and Spherical: With The Principles of ...

John Wright (mathematician.) - 1772 - 251 sider
...fig. 4. is 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,...
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The Geometrician: Containing Essays on Plane Geometry, and Trigonometry ...

Benjamin Donne - 1775 - 159 sider
...are a Semicircle, or 2 Rt. ¿.s, and 90 Degrees a Quadrant, or Rt L. j) each Degree is fuppofed to be divided into 60 equal Parts, called Minutes, and each Minute into 60 equal Parts, called Seconds, &c. Hence it is plain, that in une' qual Circles, as well as in equal, equal Angles are fubtended by an...
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