1Sinus anguli
ACE, eiusque Sinus Verſus eſt
DE. At CD eſt æqualis Sinui Recto anguli
CAD obſeruati; eſt ſiquidem CD æqualis
ſinui complementi anguli C. Igitur quæ
Ratio eſt ipſius DE Sinus Verſi complemen
ti anguli obſeruati, ad DC Sinum anguli A
obſeruati, ea eſt ipſius altitudinis notæ BA,
ad| quæſitam terræ ſemidiametrum BC.
Quarè ſinum anguli obſeruati 99997.67348
deme ex Radio, & remanet 232652. Sinus
Verſus complementi.Iam ſi fiat vt 232652.
ad 99997.67348, ita nota altitudo ped.
480. ad ped. 20631193, eadem inuenitur
ſemidiameter, quæ ſuperiùs per Algebram
innotuit.
DE. At CD eſt æqualis Sinui Recto anguli
CAD obſeruati; eſt ſiquidem CD æqualis
ſinui complementi anguli C. Igitur quæ
Ratio eſt ipſius DE Sinus Verſi complemen
ti anguli obſeruati, ad DC Sinum anguli A
obſeruati, ea eſt ipſius altitudinis notæ BA,
ad| quæſitam terræ ſemidiametrum BC.
Quarè ſinum anguli obſeruati 99997.67348
deme ex Radio, & remanet 232652. Sinus
Verſus complementi.Iam ſi fiat vt 232652.
ad 99997.67348, ita nota altitudo ped.
480. ad ped. 20631193, eadem inuenitur
ſemidiameter, quæ ſuperiùs per Algebram
innotuit.
XXXVI
Idem aliter
et breuiſſi
mè.
Idem aliter
et breuiſſi
mè.