△ABC的两边长分别为2和3，第三边的长是方程x2﹣8x+15=0的根，则△ABC的周长是_1._刷题宝

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△ABC的两边长分别为2和3，第三边的长是方程x²﹣8x+15=0的根，则△ABC的周长是 ____.

上一题下一题 0.0难度选择题更新时间:2010-09-30 03:12:57

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8

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用简便方法计算．

1.5×98＋3×1.5

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Dear Amy,

Thanks for your letter. It's always nice to hear from you.

Today is the last day of my exams. The maths exam is very difficult, but other exams are easy. I'mwaiting for the holidays now, and I'm very anxious to see you and to be with you again. I'm going to spend my Christmas and New Year holidays in New York with my sister. I'm going down town. I'm going to go shopping for Christmas gifts. I'm excited about Christmas, and about seeing you again.

Yours,

Jack

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____个正方形.

____根火柴.

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