Contact us
Choose a category below so we can get back to you as quickly as possible.
把線段AB延長到C,使BC=AB,再延長BA到D,使AD=2AB那麼BC=(1)AB=(1/2)AC;BD=(3)AB=(3/4)CD
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.