f zz Inflrumental Inflru6lions 



have 8085 Perches, and the other 11885. 

 Firft, to reduce it into a Triangle, draw the 

 Lines ED, EC, and from A and B make 

 Lines parallel to them, .as A F, BG5 then 

 draw the Lines EG, E F, and the Triangle 

 CFG, will be equal to the Trapezium A BCD, 

 which is divided as before^ for when you have 

 found, by the Rule of Proportion^ what the 

 firft Man's Bafe muft be, vi:z^. 31 Ch3ii|s,5$ 

 Links, fet it from F to H, and draw the 

 Line H E, which fliall divide the Trapezium 

 according to the former Proportion, i S ic 



^ 



^^rp to reduce dnitre^ulur fi^e'fided Figui^e in^ 

 .^, , to aj[rjifi%ley and to. divid^.ibefames, . 



3<i Let A B C D E (Fig. : 6 of the next Plate) 

 pethe five- (ided Figure 3 to reduce which into 

 a Triangle, : draw the Lines AC, AD, and 

 .parallel thereto B F, EG, extending the Bafe 

 JarpfnC to F^^i'i^nd from D to G^ then draw 

 the Lineal A; F, AG, which will make thjp 

 Triangle A F G equal ro the five-fided Figure, 

 if this w^s t:9h^ divided into two equal Parts, 

 |ake the haiC 0i;;jheBaraof theTriangle,wbich 

 is FH, and froln H draw the Line H A,Which 

 divides the Figure A B C D E into two equal 

 JParts. I'li^ jljtJ^, ypu nuy do for • ady ^ cither 

 ^Proponiffj^it^b^agih; 1 liol (nrrx^qiiiT 



J3 /I bn£ ub'n o; 



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