And adding ^ z^a — !L I zc ^ =1. zz^ y^i.zz^y 
+ ' zz' y zz'j/ ) on one fide, and its Equal ^ dm the 
other, It will be 
- KK^ 
Fluxion of A B G q- f ^ 
And taking the Fluents 
^z^a — z"l -f i 2 c = ABG-f-^ ti; and tranfpofing, 
ABG=^-^ — 3-^ ^^+ - 3 - 5£ — d. or fuppofing z e- 
qual to AC J then ACM = ‘=^‘^+3 zC— D. 
In the fame manner the Fluxion of ABH is equal to 
* 6 
and adding on one fide 
• • • • • 
z'a — ^ 2’ ^ 4- L z" c — d, and its Equal — d-i ^ 
on the other, it becomes 
• • • 
^ +a^ K'^ ^+4 ^"C- 
-i 
Fluxion of ABH — e 
And taking the Fluents 
4 -^z'^a — ^ 2* * ^ -f. L z" c — r zh ^ ABH‘— c : thcrc- 
. z'^a — 4 2’ h 4-6 2^c — 4 2 d~\-e , 
_ — — . , 
fore ABH: 
Or ACN=2:^A — 4 z'B4-62"C — 4 2 D4-E, fuppofing 
2 equal to AC. In like manner you may proceed to 
meafure any of thefe Curves ; and you will always 
find their Value the fame as is exprefled in the Propo- 
fition. 
