dacă:
[tex]bc {}^{2} = ab {}^{2} + ac {}^{2} \\ { \\ (2 \sqrt{3)} }^{2} = (6 \sqrt{2}) { \\ }^{2} + (4 \sqrt{3}) {}^{2} \\ \\ [/tex]
120=120=> RTP m(<A)=90=>
sin B=ac/bc
[tex] \sin(b) = \frac{4 \sqrt{3} }{2 \sqrt{30} } = \frac{ \sqrt{10} }{4} [/tex]
cos B= ab/bc
tg C=ab/ac
ctgC= ac/ab
