A, 4 3

3 X Data baß& perpendiculari Iroſcelu

ort bogonij hyxothenuſam reperire. Baſis qvadratum adde quadrato perpendi- cularis, productorum radix indicat

hypothenuſam. Vel: dupla quadratum

unius lateris,& productorum radix dat hypothenuſan.

Xl. Dato Loſcele orthogouio diame- erum circuli inſcripti invenire, Adde baſi cathetum,& à producto deme hy- pothenuſam, quod remanet manife ſtat circuli diametrum.

XII Daco ſcaleno oxigonio lineam per- pendicularem ex plorare, 1. Multiplica qvadratè omnia latera. 2. Compone duo minora, à ſumma horum ſubtrahe quadratum lateris majoris,& numeri