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 Books Books ... is supposed to be divided into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. Degrees, minutes, and seconds, are designated respectively, by the characters ° ' ". For example, ten degrees, eighteen minutes, and... The Geometrician: Containing Essays on Plane Geometry, and Trigonometry ... - Page 60
by Benjamin Donne - 1775 - 159 pages
Full view - About this book ## Elements of Surveying: Including a Description of the Instruments and the ...

Surveys - 1837 - 249 pages
...calculations, the circumference of the circle is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. As the circumference of a circle may be regarded as a proper measure of angles, having their vertices...
Full view - About this book ## A Treatise on Astronomy

L. H. Tyler - 1837
...smallest to the largest, is conceived 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. These divisions are usually expressed by signs : thus, 15° 10' 15" signifies five degrees, ten minutes,...
Full view - About this book ## Euclid's Elements [book 1-6] with corrections, by J.R. Young

Euclides - 1838
...subtended by one of these, as the angular unit. Each degree is moreover supposed to be subdivided into 00 equal parts, called minutes; and each minute into 60 equal parts, called seconds, and so on. The angle subtended by any number of these will, therefore, be some fractional part of the...
Full view - About this book ## The Complete Mathematical and General Navigation Tables: Including Every ...

...circles of the spheres, is divided into 360 equal parts, called degrees ; each degree is divided into GO equal parts, called minutes, and each minute into 60 equal parts, called seconds. ,57 The Meridian of any place on the earth, is a semicircle which passes through that place, cuts the...
Full view - About this book ## Youth's Book of Astronomy

John Lee Comstock - Astronomy - 1838 - 256 pages
...All circles surrounding the earth are divided into 360 equal parts called degrees ; each degree is divided into 60 equal parts called minutes, and each minute into 60 parts called seconds. The signs by which these are indicated are 360° degrees, 60' minutes, and 30"...
Full view - About this book ## Elements of Surveying: With a Description of the Instruments and the ...

Charles Davies - Surveying - 1839 - 261 pages
...calculations, the circumference of the circle is divided into 360 equal parts, called degrees ; each degree into 60 equal parts, called minutes ; and each minute into 60 equal parts, called seconds. PLANE TRIGONOMETRY. V As the circumference of a circle may be regarded as a proper measure of angles,...
Full view - About this book ## Elements of Surveying: With a Description of the Instruments and the ...

Charles Davies - Surveying - 1839 - 261 pages
...calculations, the circumference of the circle is divided into 360 equal parts, called degrees; each degree into 60 equal parts, called minutes; and each minute into 60 equal parts, called seconds. PLANE TRIGONOMETRY \ As the circumference of a circle may be regarded as a proper measure of angles,...
Full view - About this book ## First Lessons in Geometry: With Practical Applications in Mensuration, and ...

Charles Davies - Geometrical drawing - 1840 - 252 pages
...measurement of angles. For this purpose it 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. The degrees, minutes, and seconds, are marked thus, °, ', " ; and 9° 18' 10", are read, 9 degrees,...
Full view - About this book ## The Elements of Arithmetic

Augustus De Morgan - Algebra - 1840 - 166 pages
...the radius by 3-1415927. * The right angle is divided into 90 equal parts called degrees, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seconds. Thus, 2° 15' 40" means 2 degrees, 15 minutes, and 40 seconds. To find the area of a sector, very nearly,...
Full view - About this book ## The Elements of Arithmetic

Augustus De Morgan - Algebra - 1840 - 166 pages
...the radius by 3-1415927. - The right angle is divided into 90 equal parts called degrea, each degree into 60 equal parts called minutes, and each minute into 60 equal parts called seccnde. Thus, 2° 15' 40" means 2 degrees, 15 minutes, and 40 seconds. To find the area of a sector,...
Full view - About this book