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# Title: Lexicon Technicum: Or, An Universal English Dictionary Of Arts And Sciences (shelfmarks Leibn. Marg. 71; ZEN Leibn. Marg. 71)
# Folio - , page id 806933011:0849
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2. HF rou vould apply the Docerine ol Prigono
metry, ro che Calculation oF Hleighrs, Depcho,
Distances, che Came Triansle and Numbers rili
do; repard beins had ro rhe Narure oFche Termis
required and Coush.
For the Perpendicular P, will reprelent any
Altitude; and B, will reprelent a Distance trom
the Foor oF ic meatured on the Fround: The An-
Eleacbis Found by che Ouadrane or lome Tuch In-
strumene; and consequens rou may tind P by
Case L. FOr.
Re Radius is re rhe Diltance, from the FOOK OF
the Obiect:: 50 is ihe Pangenc oF che Angle OF
Alricude, 1o che Feistir oF che Place, 1. c.
R: B:: 2, b : P
O suxpose chie Distance B vere required
srom aboré, by catins che angle a and sindine
he Lenech oE P, by 2 Serins and Plummet.
Zhen vill.
R : P:: T, a : B
This beine premiled as r0 che generat DIe or
Trisonometry, let us procced io.
CASF HI.
Siven B, LI. Required che Aneles a, b,
H: R:: B: 5, a
H = 2. 9201233 = 832
R = 10. 000000O
B
2. 8853612 = 768
5. a = 9. 9652379 = 67 23
ASICA
hich Subtracted trom ga Deprees, sires ho
Ansle b = 22 Degrees. 37 MinuTeS.
Dy Cunters Scale.
LHC LZFCHE FFOM 85 2, VaCk 10500, in the Linc
et Numbers W sCac on  ss
67 Deprees 30 Mmures i EhC LHie Ot EC
Sines.
Civen B, HI, Required P.
Flarins tound a, by he Torexoins Cales otiis
vill be che Theorem.
: B : 3 Y: B : P
-
By CuncersScale.
6197205 = 220 37
3853612 = 968
P = 2, 5050817 = 320.
The EXTenE FrOm 45 Dexrees in che FangenE
line, back E0 22 DcerCS, 37 Minures will reach
in che Line ot Luldes Hom 368, back 10320.
le ld 1 00
Siven B, P. Reguied V V.
B: R:: P: Y, b
= 1C
3= 2. 8853612 = 968
P Cuners Scale
= 2, 5051500 = 320
T, b = 9. 6197888 = 22 371 = b.
Nhich 22 Deprees 37 Minures Subtractedsron
Degrees, Leares a =67 Dexrees 23 Minures.
in che Tangents.
THC EKIenEHOII 10O BacK C0 320, in rhe Line
will reach From 45 back 1O 22 DCsFCCS 37 MI
CA5 HI.
Civen B, P, Required FL.
Flaving Founc b by chetoresoins Cale, chis milt
a P: : R : F
be che Llorem.
S, b = 9. 5843685 == 22 39
E
205051500 = 5 L
_1 = 2. 9u0 1813 = 83 = 11.
2
= 10