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" In order to obtain accurate measurements each degree is divided into 60 equal parts called minutes and each minute into 60 equal parts called seconds. "
Cyclopedia of Carpentry and Contracting ...: Architectural drawing ... - Page 61
1910
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Elements of geometry, with ... trigonometry

André Darré - 1872 - 226 pages
...equal parts into which the circumference of every circle is supposed to be divided are called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. Symbols are used to express degrees, minutes, and seconds. Thus...
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The naval architect's and shipbuilder's pocket book of formulć [&c.].

Clement Mackrow - 1879 - 558 pages
...right angle is supposed to be divided into 90 equal parts, each of which parts is termed a degree ; each degree is divided into 60 equal parts, called...minute is divided into 60 equal parts, called seconds. To express the measure of an angle in degrees and decimal parti of a degree. Ex. : To bring 24°, 16',...
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Text-book of Popular Astronomy ...

William Guy Peck - Astronomy - 1883 - 406 pages
...place is called a sidereal day. The sidereal day is divided into 24 equal parts called hours, each hour is divided into 60 equal parts called minutes, and...minute is divided into 60 equal parts called seconds. Time reckoned iu terms of these units is called sidereal time. The sidereal day, which is assumed to...
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Subterraneous Surveying: With and Without the Magnetic Needle

Thomas Fenwick, Thomas Baker - Surveying - 1888 - 246 pages
...peri/phery divided into, or to con\ tain, 360 equal parts, called i degrees, — and those degrees -JB are divided into 60 equal parts, / called minutes, — and each minute is divided again into 60 equal parts, called seconds, &c. 3. Every circle AD, contains four right angles, at angles...
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Elementary Synthetic Geometry of the Point, Line and Circle in the Plane

Nathan Fellowes Dupuis - Geometry - 1889 - 370 pages
...right angle. For practical purposes the right angle is divided into 90 equal parts called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. 20 seconds and six-sevenths of a second, follows : — 51° 25'...
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The Carpet-dealer's Guide: A Manual of Practical Information on the Art of ...

John H. Macke - Carpet laying - 1891 - 244 pages
...practical purposes, the circumference of a circle is divided into 360 equal parts, called degrees; each degree is divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. To find the diameter when the circumference is given. RULE. Divide...
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Plane Trigonometry

Sidney Luxton Loney - Plane trigonometry - 1893 - 534 pages
...the Sexagesimal system of measurement a right angle is divided into 90 equal parts called Degrees. Each degree is divided into 60 equal parts called Minutes, and each minute into 60 equal parts called Seconds. The symbols 1°, Г, and 1" are used to denote a degree, a minute,...
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Arithmetic by Grades for Inductive Teaching, Drilling and Testing, Book 7

John Tilden Prince - 1894 - 120 pages
...the North Temperate Zone ? What is its width in miles ? GEOMETRICAL EXERCISES AND MEASUREMENTS. 81 1. Each degree is divided into 60 equal parts called...minute is divided into 60 equal parts called seconds. Fill out the following table : — seconds ( ") = 1 minute (') — minutes = 1 degree (°) — degrees...
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Elementary Synthetic Geometry of the Point, Line and Circle in the Plane

Nathan Fellowes Dupuis - Geometry - 1894 - 313 pages
...right angle. For practical purposes the right angle is divided into 90 equal parts called degrees ; each degree is divided into 60 equal parts called minutes ; and each minute into 60 equal parts called seconds. 20 seconds and six-sevenths of a second, follows :— 51° 25'...
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Grammar School Arithmetic for Inductive Teaching, Drilling and Testing ...

John Tilden Prince - Arithmetic - 1895 - 358 pages
...miles ? 10. What is the width in degrees of the North Temperate Zone ? What is its length in miles ? 1. Each degree is divided into 60 equal parts called...minute is divided into 60 equal parts called seconds. Fill out the following table : — • seconds ( " ) = 1 minute ( ' ) — minutes = 1 degree (°) ~-...
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