ti6 Jnjirumental InflruElions 



have the End of it but juft touch the Line 

 E D, as L K does 5 for the Triangle A K G, is 

 equal to the Triangle A G L, each 8 Acres. 

 And thus you may divide any Piece of Land 

 of never fo many Sides and Angles, according 

 to any Proportion, by ftrait Lines through it, 

 with as much Certainty, and more Eafe, than 

 the former Way* 



fp^ You might alfo have drawn the Line 

 A D, and meafur'd the Triangle A G D, and 

 afterwards have divided the Bafe G D, accor- 

 ding to Proportion, in the Point I, which V\\ 

 make more plain in this following Example. ' 



Suppofe the following Field, (Fig. 9 of the 

 next Plate) containing 27 Acres, is to be di-' 

 vided between three Men, each to have nine 

 Acres^ and in the Lines ofDivifion, to run 

 from a Pond in the Field, fo that every one^ 

 may have the Benefit of the Water, without* 

 going over one another's Ground. 



Firft, from the Pond draw Lines to eve- 

 ry Angle, as O A, B, C, D, E^ 

 and then is the Figure divided into five Tri- 

 angles, each of which meafure, and put thev 

 Contents down feverally; which Contents re-*; 

 duce all into Perches 5 fo will the Triangle \ 



674-) 



1 23 8^ Perches ; 



1107 ^ 



the whole Content being 4520 Perches, or 27, 

 Acres, each Mans Proportion i'440 Perches. 



From 



