Choose a category below so we can get back to you as quickly as possible.
在四邊形ABCD中,∠DAB=60°∠DCB°AD=AB試證明線段CD BC AB能够成直角三角形
∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°
在四邊形ABCD中,∠DAB=60°∠DCB°AD=AB試證明線段CD BC AB能够成直角三角形
∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°∠DCB=30°
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.