推 bn51401 :15根號63 08/31 14:11
→ bn51401 :阿好像算錯了= =... 08/31 14:12
→ bn51401 :20根號63 XD ? 08/31 14:14
→ sheep7940807:答案是60根號7,但我不知道怎麼算!! 08/31 14:15
推 bn51401 :60根號7 就是20根號63 ? 08/31 14:16
推 bn51401 :(3-1) * [3 - (-1)] * 三角形 * 2 畫畫圖試試看 08/31 14:37