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 Βιβλία Βιβλία 41 - 50 από 187 για The circumference of every circle is supposed to be divided into 360 equal.... The circumference of every circle is supposed to be divided into 360 equal... First Lessons in Arithmetic: Combining the Oral Method with the Method of ... - Σελίδα 162
των Charles Davies - 1849 - 168 σελίδες
Πλήρης προβολή - Σχετικά με αυτό το βιβλίο ## Astronomy, as it is Known at the Present Day: With an Account of the Nature ...

George G. Carey - 1825 - 166 σελίδες
...still be in the plane of the circle. 8. Degrees, fyc. — All circles, whether great or small, are 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, &c.f 9.... ## An Introduction to the Theory and Practice of Plain and Spherical ...

Thomas Keith - 1826 - 442 σελίδες
...measure of the angle авс and the arc DE is the measure of the angle ABC. (H) The circumference of every circle is supposed to be divided into 360 equal parts called degrees, each degree into 60 equal parts called minutes, each minute into 60 equal parts called seconds. The angles are... ## A New Treatise on the Use of the Globes: Or, A Philosophical View of the ...

Thomas Keith - 1826 - 334 σελίδες
...1820, is 14° 13' 7" ; and its declination 88° 20' 55" N. Connoissance des Terns, for 1820, p. 168. t Every circle is supposed to be divided into 360 equal parts called degrees ; each minute, into 60 equal parts called seconds, &c. : (a degree therefore is of different lineal extent,... ## Outlines of Modern Geography: On a New Plan, Carefully Adapted to Youth ...

Charles Augustus Goodrich - 1826 - 290 σελίδες
...equal parts, called degrees. A degret on the earth is 60 geographical, or nearly 69 1-10 common miles; each degree is divided into 60 minutes, and each minute into 60 seconds. They are marked thus : 24° 12 40" ; that is, 24 degrees, 12 minutes, and 40 seconds. What is the equator... ## An elementary treatise on arithmetic, in theory and practice: adapted to the ...

James Ryan - 1827 - 272 σελίδες
...17th of March and the 25th of December ? Ans. 283. Division of the Circle. 47. The circumference of every circle is supposed to be divided into 360 equal parts called degrees — each degree is subdivided into 60 equal parts called minutes — each minute into 60 equal parts called seconds-^—... ## The Elements of Euclid: The Errors by which Theon, Or Others, Have Long ...

Robert Simson - 1827 - 513 σελίδες
...meeting BA, BC, in A, C ; the arch AC is called the measure of the angle ABC. II. The circumference of a 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,... ## The Common School Manual: A Regular and Connected Course of Elementary ...

...A, C, I,, and B, C, E, divide the circle inUlour equal parts called quadrants. 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; and these... ## Sequel to The Analytical Reader: In which the Original Design is Extended ...

Samuel Putnam - 1828 - 300 σελίδες
...and destitute. • ANGLE, a corner, formed usually by the meeting of two lines. The circumference of every circle is supposed to be divided into 360 equal parts, called degrees. A semi-circle, of course, contains li!0 degress, and a quadrant, or quarter of a circle, contains SO... ## An Introduction to Mensuration and Practical Geometry

John Bonnycastle - 1829 - 252 σελίδες
...and the other two sides are called legs. PRACTICAL GEOMETRY. 21 D / -E B *47. 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 so on. 48. The measure of any right-lined angle is an arc... ## The London Encyclopaedia: Or, Universal Dictionary of Science, Art ..., Τόμος 10

Thomas Curtis - 1829
...sides are called the LEGS, or sometimes the base and perpendicular. Fig. 10. 40. The circumference of every circle is supposed to be divided into 360 equal parts, called DEGREES, and each degree into sixty MIMUTES, each minute into sixty SECOND, and so on. Hence a semicircle contains...