60 seconds (″) make 1 minute (′).
60 minutes „ 1 degree (°).
360 degrees „ 1 circum. (C.).
The circumference of every circle whatever, is supposed to be divided
into 360 equal parts, called _degrees_.
A degree is ¹⁄₃₆₀ of the circumference of any circle, small or large.
A quadrant is a fourth of a circumference, or an arc of 90 degrees.
A degree is divided into 60 parts called minutes, expressed by the sign
(′), and each minute is divided into 60 seconds, expressed by (″); so
that the circumference of any circle contains 21,600 minutes, or
1,296,000 seconds.