Contact us
Choose a category below so we can get back to you as quickly as possible.
a=2,b=1,c^2=a^2+b^2 F1P-F2P=2a=4 F1P^2+F2P^2=(2c)^2=20 s=(F1P*F1P)/2=(20-4^)/4=1 不知道對不對,自己看著辦哈.
We and our partners use cookies and other technologies to analyze traffic and optimize your experience. View more info and control your cookies settings at any time in our Cookies Policy.