The lengths of the three altitudes of a triangle are in the ratio 3 : 4 : 6. If the radius of the inscribed circle of the triangle is 1, find the radius of the circumcircle of the triangle.
某三角形三條高的長度之比為3 : 4 : 6。若該三角形內切圓的半徑是1,求它的外接圓半徑。
收錄日期: 2021-04-13 18:00:22
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110601000051KK01283