Side
af
764
Forrige
Næste
633 OF engineering fobmulæ.
Pkopekties of the Circle.
Diameter ..X 3-14159 = circumference.
Diameter .. X ’ 886226 = side of an equal square.
Diameter ..X -7071 = side of an inscribed square.
Diameter3 • • X *V854 — uieu of circle,
Radius .. . • X 6'28318 = circumference.
Circumference X '31831 —diameter.
Circumference = 3 • 5449 V area clrc‘e-
Diameter .. = 1-1283 V area of circle.
Lenath of arc = number of degrees X ‘017453 radius.
Arc of 1° to rad. 1 = 0'01745329.
Arc of 1' to rad. 1 = -00029U888.
Arc of 1" to rad. 1 = ’000004848.
Degrees in arc whose length = radius = 57u'2957795.
Value or n (or Ratio of Diameter to Cikcbmfekence).
„ = 3-14159265358979323846264338327950 +
Log. 360 w —0-4971499 ^2 = 4'44288 J 2 *-=.= 0’4501582
7T 7F 360 ~ = 114-59156 , / - -00872664 j % 2 - = 0'7978846 7T = 2-2214415 7T — =0-1013212 7T2 1
1 _ rr'J 1 V77 0-1013212 = 0-5641896 j - — 1-2533 2 —— = 0-5641886 'J it
n. 1 7r 1 -• n IT it'2 X I tt2 n. \ 1 n n a/ ir.
1 3’14159 3-14159 •31831 9’8696 ।9'8696 1-7725
2 6’28318 1'57080 •63662 19-7392 j4-9348 3’5449
3 9-42478 1-04720 •95493 29-6088 3'2898 5’3174
4 12-56637 -785398 1-27324 39-4784 2*4674 7-0898
5 15'70796 ’628318 1-59155 49’3480 1’9739 8'8623
18-84956 ! -523599 1'90986 59-2176 1-6449 10’6347
7 21-99115 ' -418798 2-22817 69'0872 1-4099 12-4072
8 25'13274 -392699 2'54648 78’9568 1'2337 14-1796
9 28-27133 । -319065 2'86479 88'8264 1-0966 15*9521 L .. —