标题: 输血Jj关于tabletop的问题 [打印本页] 作者: 笨蛋加油 时间: 2012-3-12 15:43 标题: 输血Jj关于tabletop的问题 Q7: A circular mat with diameter 20 inches is placed on a square tabletop, each of whose sides is 24 inches long. Which of the following is closest to the fraction of the tabletop covered by the mat?