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" Arcs 60 seconds (") =1 minute (') 60 minutes = 1 degree (°) 90 degrees = 1 right angle 360 degrees = 1 circle... "
Modern Junior Mathematics - Page 236
by Marie Gugle - 1920
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Practical arithmetic for schools

Robert Miller (M.A., of Edinburgh.) - 1873 - 118 pages
...Lammas, . Aug. 1. Christmas, . Dec. 25. | Martinmas, . Nov. 11. INCLINATION. (XII.) ANGULAR MEASURE. 60 seconds ('') = 1 minute ('). 60 minutes = 1 degree (»). 90 degrees = 1 right angle (l_) . 360 degrees = 1 circle. MEASURE OF NUMBER. 12 units = 1 dozen ; 12 dozen = 1 gross ; 20 units...
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Complete Arithmetic: Theoretical and Practical

William Guy Peck - Arithmetic - 1877 - 430 pages
...the pr1mary unit. The ninetieth part of a right angle is called a Degree. TABLE. 60 seconds (") make 1 minute . . ' 60 minutes " 1 degree ° 90 degrees " 1 right angle .... rt. a. DEFINITION AND EXPLANATION. 137. The Longitude of a place is the angular distance of the meridian...
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Elementary Arithmetic, Oral and Written

William Guy Peck - Arithmetic - 1878 - 240 pages
...unit is the right angle. The ninetieth part of a right angle is a degree. TABLE. 60 seconds (") make 1 minute . . . '. 60 minutes " 1 degree . . . °. 90 degrees " 1 right angle . . rt. a. 360 degrees " 1 circumference . dr. LONGITUDE. 213. Longitude of a place is the distance east or...
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Exercises in Arithmetic

George Albert Wentworth, George Anthony Hill - Arithmetic - 1887 - 448 pages
...thirty-one; But leap-year, coming once in four, gives February one day more. VII. ANGULAR MEASUEE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 90 degrees = 1 right angle. 360 degrees = 1 revolution. The circumference of a circle is divided into 360 equal parts, called degrees...
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Arithmetic

George Albert Wentworth - Algebra - 1892 - 312 pages
...4 ; thus, 1888 and 2000 are leap-years, but 1887 and 1900 are not leap-years. VII. ANGULAK MEASURE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 90 degrees — 1 right angle. 360 degrees = 1 revolution. The circumference of a circle is divided into 360 equal parts, called degrees...
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Commercial Arithmetic

Samuel Jackson - Business mathematics - 1893 - 444 pages
...15s. 8c/., 17s. 25*. 6d., 32*., 35s., 52s., 63s. Angular Measure. The English or Sexagesimal Method. 60 seconds (") = 1 minute. 60 minutes (') = 1 degree. 90 degrees ( ) = 1 right angle. 30° = 1 sign (S.), 12 signs = 360° = 1 circle (C.). The circumference of every circle is considered...
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"Wentworth & Hill's Exercise Manual: Arithmetic, Volume 1

George Albert Wentworth - 1894 - 318 pages
...4 ; thus, 1888 and 2000 are leap-years, but 1887 and 1900 are not leap-years. VII. ANGULAR MEASURE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 90 degrees = 1 right angle. 360 degrees = 1 revolution. The circumference of a circle is divided into 360 equal parts, called degrees...
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Elements of Geometry

Andrew Wheeler Phillips, Irving Fisher - Geometry - 1897 - 374 pages
...cu. feet =1 cu. yard. 128 cu. feet =1 cord fcd.). 1 cu. yard =0.7646 cu. meter, 1 cord =3.625 steres. ANGLES 60 seconds ('") = 1 minute (')• 60 minutes =1 degree (°). 90 degrees — 1 right angle. CIRCLES 360 degrees=1 circumference. 7r=3.1416—nearly 31/71 liq. gal.=3.785 liters= 331 cu. in. 1...
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Elements of Geometry

Andrew Wheeler Phillips, Irving Fisher - Geometry - 1897 - 376 pages
...=1 cu. yard. 128 cu. feet =1 cord led.). 1 cu yard =0.7646 cu. meter. 1 cord =3.625 steres. ANCLES 60 seconds (")=1 minute ('). 60 minutes =1 degree (°). 90 degrees =1 right angle. CIKCLES 360 degrees— 1 circumference. 1r=3.1416=nearly 31/7. CAPACITY 1 liq. gal. =3. 785 liters=...
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Exercises in Arithmetic

George Albert Wentworth, George Anthony Hill - Arithmetic - 1897 - 476 pages
...4 ; thus, 1888 and 2000 are leap-years, but 1887 and 1900 are not leap-years. VII. ANOULAR MEASURE. 60 seconds (") = 1 minute (>). 60 minutes = 1 degree (°). 90 degrees — 1 right angle. 360 degrees = 1 revolution. The circumference of a circle is divided into 360 equal parts, called degrees...
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