Contact us
Choose a category below so we can get back to you as quickly as possible.
因為角C等於90° 所以三角形ABC為直角三角形 根據畢氏定理 C^2=A^2+B^2 C=25
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.