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Of Geometry. 
See ¢ riety es 
Of Lines. Page 1 
Pros. 1 ee Be) xoM a Point 10. To find a third proportional 
OS 
vite; Line (c b.) €2 
2. From a Point given (a) to : et 
4 right Line (ae) equal to the given 
Line (d g.) ibid. 
3+ 4 right Line being given (ab) 
to cut off a per (af) equal to the 
right Line (d c.) 
4. To make an Angle (abc) e 
qual to an Angle given (d é f.) 
J. To. divide. an Angle ae, (2) 
into two equal Parts. 
6. From a given Point (a or a 
aks let fall, or raife a per pendicular, 
or. - 0 divide a.right Line into ae 
equal Parts, by a right Line, ° 
(ab, dy nm.) 
8. To divide any Line as (a b) ‘ 
@ given proportion, as (ca, ce.) 6 
° 1 find a unt prepyriiopat 
(34) 2 three given, Viz. (ae: € C: 
d b.) ibid. 
tt ibid - 
(n m) to two given (ZY, y X-) ibid, 
11. Between two given Lines (ik, 
n.0)¢o find ameanproportion(ch. jibid. 
12. Yo divide a right Line (bf) 
in extveam and mean proportion. 7 
13. Zo find the center of an Arch 
or Circle. 
14. Io draw a Tangent fom a 
Point given. bid. 
1f. Le cut off a Segment ac a 
Circle given, that may receive an 
Angle equal to an Angle given. 9 
16.. To divide aright Line into any 
Namber of equal Parts. ibid. 
17. Zo divide a right Line in 
Lah FORE as another is “tee 
divide bi 
18, “7 odeferibe fingle, double, tre- 
ie bari Sc. /piral Lines. 10 
To defcribe a [erpentine Line 
poe an Ellipfis. If 
20. Zo defcribe with Compafes 
any rural or ivregular curved fie. 
ibi 
b Set tT. 
