 DIVISIONS OF THE CIRCLE. 60 Seconds = 1 Minute. 60 Minutes = 1 Degree. 30 Degrees = 1 Sign. 90 Degrees = 1 Quadrant. 360 Degrees, or 12 Signs = 1 Circumference. Formerly the subdivisions were carried on by sixties ; thus, the second was divided into 60...  Graded Problems in Arithmetic and Mensuration - Page 120by Samuel Mecutchen - 1880 - 232 pagesFull view - About this book
 | Edward Brooks - Arithmetic - 1895 - 424 pages
...Aright angle is measured by 90 degrees, or a quadrant ; half a right angle, by 45 degrees, etc. TABLE. 60 seconds (") =1 minute ' 60 minutes = 1 degree ° 30 degrees =1 sign S. 1. The unit is the degree, which is ^J5 of the circumference of a circle. A quadrant is one-fourth... | |
 | Edward Brooks - Arithmetic - 1895 - 248 pages
...its sides. A right angle is measured by 90 degrees ; half a right angle, by 45 degrees, etc. TABLE. 60 seconds (") . . . . = 1 minute ' 60 minutes = 1 degree ° 30 degrees = 1 sign S. 12 signs, or 360° . . . . = 1 circumference . . . C. WRITTEN EXERCISES. 1. How many seconds in... | |
 | William Seneca Sutton - 1896 - 342 pages
...and signs (S) ; they are used in estimating latitude and longitude, direction, angles, etc. TABLE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 30 degrees = 1 sign (S). 360° or 12 signs = 1 circumference of a circle. TIME MEASURES. TABLE. 165. 60 seconds = 1 minute.... | |
 | Thomas Edie Hill - Business - 1897 - 652 pages
...calendar months... { * ?eM365 days, 5 hours, 48 minutes, and 49 seconds ...... 1 solar year, Circular. 60 seconds ........... 1 minute, 60 minutes ............ 1 degree. 30 degrees ............. 1 sign. 90 degrees ............. 1 quadrant. 4 quadrants ........... (, „,„,360 degrees ................. | |
 | James Morgan Rawlins - Arithmetic - 1899 - 458 pages
...sides. The angle BCD is measured by the arc BD. A right angle is measured by a quadrant, or 90°. Table. 60 seconds (") = 1 Minute ( / ). 60 Minutes = 1 Degree (°). 30 Degrees = 1 Sign (S.). 12 Signs, or 360° = 1 Circumference (C.). The Sign is used in astronomical calculations. 1.... | |
 | John Walter Wilkinson - Agriculture - 1900 - 396 pages
...= 1 ton. Troy Weight. — 24grains = 1 pennyweight; 20 pennyweights = 1 ounce; 12 ounces = 1 pound. Circular Measure. — 60 seconds = 1 minute; 60 minutes = 1 degree; 30 degrees = 1 sign; 12 signs = 1 circle or circumference. Cubic Measure. — 1728 cubic inches = 1 cubic foot; 27 cubic feet = 1... | |
 | William Joseph Moran - Arithmetic - 1900 - 198 pages
...Measure is used in measuring angles and arcs of circles. It is sometimes called circular measure. TABLE. 60 seconds (") = 1 minute, '. 60 minutes = 1 degree, °. 30 degrees = 1 sign, S. 360 degrees = 1 circle, C. 63. 1. How many degrees in the circumference of a circle? In £ of the... | |
 | Almanacs, American - 1887 - 392 pages
...ounces, 1 pound, equal to .82 pound avoirdupois and to 22.81 cubic inches of distilled water. ANGULAR MEASURE.— 60 seconds (") 1 minute ('); 60 minutes, 1 degree (°); 30 degrees, 1 sign ; 90 degrees, 1 quadrant, or right angle; 4 quadrants, or 360 degrees, 1 circumference of a circle.... | |
 | Frank J. Browne - Mental arithmetic - 1902 - 186 pages
...days = 1 week (wk.) 12 calendar months (mo.) = 1 year (yr.) 100 years — 1 century. TABLE FOR ANGULAR MEASURE. 60 seconds (") = 1 minute ('). 60 minutes = 1 degree (°). 30 degrees = 1 sign. 12 signs = 1 circle. 360 degrees - 1 circumference (C). A degree of the earth's equator contains 60 geographical... | |
 | John William Hopkins, Patrick Healy Underwood - Arithmetic - 1903 - 578 pages
...long ton PAPER MEASURE 24 sheets 20 quires 2 reams 5 bundles = 1 quire = 1 ream = 1 bundle = 1 bale CIRCULAR MEASURE 60 seconds (") = 1 minute (') 60 minutes = 1 degree (°) 30 degrees 12 signs 360 degrees = 1 sign (S.) = 1 circle (C.) or circumference = 1 circumference NAUTICAL MEASURE... | |
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