 | John Henry Moore - Business mathematics - 1904 - 404 pages
...divisible into 90 equal parts called degrees. Every circle therefore may be divided into 360 degrees. TABLE 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 360 degrees = 1 circle (Cir.). Ctr. o ' " 1 = 360 = 21,600 = 1,296,000. Minutes of the earth's circumference are called... | |
 | George William Myers, Sarah Catherine Brooks - Arithmetic - 1907 - 436 pages
...angle DAF is the required angle. CONSTRUCTIVE GEOMETRY TABLE OF UNITS OF ANGLE AND ABC MEASUREMENT 60 seconds (") = 1 minute (') 60 minutes = 1 degree (°) 360 degrees = 1 circumference (or perigon) 90 degrees = 1 quadrant (or right angle) TABLE OF EQUIVALEN 1,296,000" 21,600' 360° '... | |
 | Frank H. Hall - Arithmetic - 1907 - 364 pages
...of 45 degrees; if the arc is 20 degrees, the angle is 20 degrees, etc. Circular and Angular Measure 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 360 degrees = 1 circumference. In geography, a meridian is a north and south line on the surface of the earth, extending from pole... | |
 | Samuel Hamilton - Arithmetic - 1907 - 422 pages
...form the angle. Thus, BOO is an angle of 30°, and A 00 is an angle of 150°. Table of Angular Measure 60 seconds (") = 1 minute (') 60 minutes =1 degree (°) 360 degrees = 1 circumference (C) The length of a degree at the equator is 69^ miles. Draw an angle of 90°; 45°; 60°; 120°; 30°.... | |
 | Great Lakes (North America) - 1907 - 272 pages
...cabin clock should show local mean time. The sun always gives local apparent time. C. CIRCULAR MEASURE. 60 seconds (") = 1 minute, 60 minutes = 1 degree, 360 degrees = 1 circumference, Note 1. If the circumference of a circle be divided into 360 equal parts or arcs, each arc is a degree;... | |
 | John William Hopkins - Arithmetic - 1907 - 376 pages
...is called a semicircumf erence . An arc equal to one fourth of a circumference is called a quadrant. 60 seconds (") = 1 minute (') 60 minutes = 1 degree (°) 360 degrees = 1 circumference ANGULAR MEASURE An angle is a figure formed by two straight lines proceeding from a point. Its magnitude... | |
 | E.I. du Pont de Nemours & Company - Engineering - 1908 - 248 pages
...= 3 feet. The hand is used for heights of horses and girths of spars. CIRCULAR AND ANGULAR MEASURE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 360 degrees = 1 circumference (C). SQUARE OR LAND MEASURE. 144 square inches = 1 square foot. 9 square feet = 1 square yard = 1296... | |
 | Samuel Hamilton - Arithmetic - 1908 - 512 pages
...angle. Thus, В ОС is an angle of 30°, and А ОС is an angle of 150°. 196 Table of Angular Measure 60 seconds (") = 1 minute (') 60 minutes =1 degree (.°) 360 degrees = 1 circumference (C) The length of a degree at the equator is 69^ miles. Draw an angle of 90°; 45°; 60°; 120°; 30°.... | |
 | School of Railway Signaling (Utica, N.Y.) - Railroads - 1910 - 446 pages
...make 1 Eagle (E.) MEASURE OF TIME (min.) (hr.) (da.) (wk.) (yr.) (yr.) MEASURE OF ANGLES (cen.) 313. Circular, or Angular Measure is used to measure arcs of circles, and angles. Table 60 Seconds (") make 1 Minute (') 60 Minutes make 1 Degree (°) 360 Degrees make 1 Circle (Cir.)... | |
 | Wilbur Fisk Nichols - 1910 - 156 pages
...cardboard a protractor and use it in measuring all the angles on this page. TABLE OF ANGLES AND CIRCLES 60 seconds (") = 1 minute (') 60 minutes = 1 degree (°) 360 degrees = 1 circumference 1. Triangles are also named from their sides as, equilateral, isosceles, and scalene. 2. An equilateral... | |
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ANGULAR MEASURE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 360 degrees = 1 circumference. 
