102 



g - 



pro radio habentem 



ad arcum arcui M N fimilem & 



five in fiylo 



Cotefii ad menluram anguli SAO (ccundum 

 g - khf 



modulum ? qux proinde menfura 



Vi 



I-i / 



X MN. 



In circumferentia circuli 

 cujus radius eft i & diameter 

 AB aptetur chorda BFzif, 

 fiimtoque arcu A D ad A F 

 ut r ad F , junttisque A F, F D , 

 AD, DB, erit per Probl. 2. 

 AD ad D F ut h ad g. Et quoniam per na- 



. ^ AD. BF — AB. FD 



turam circun elt BD 9 



A F 



erit ( pro A B , A F & B F fcribendo eorum valo- 



res 2, V4 — /" &/, & pro A D & 

 F D eorum proportionales h & g ) B D ad 

 hf -- ig 



— in eadem ratione ac AD ad h vel FD 

 V4-/^ 



ad g: cumque per Probl. 2 fit h ZI 



V— 2^ 



five 



fivc - 



iAD 



-9 ent 



nllr 

 cojiih rB 



tiRr 



adeoque modulus 



g 



Sm. r B 



ii r R 

 f BD 



;/ R r 

 -ihf 



cojm. 



