Contact us
Choose a category below so we can get back to you as quickly as possible.
利用海倫公式 假設在平面內,有一個三角形,邊長分別為a、b、c,三角形的面積S可由以下公式求得: S=√[p(p-a)(p-b)(p-c)]而公式裏的p為半周長:p=(a+b+c)/2 數形結合意義不是特別大.
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.