Contact us
Choose a category below so we can get back to you as quickly as possible.
這是飲馬問題,作A關於直線L的對稱點C,則直線BC與已知直線交點即為所求點P(證明則是三角形兩邊之差小於第三邊)
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.