论文部分内容阅读
故事分享淘淘家的新房装修好了。周末,妈妈打算带淘淘去商场买一些地毯。于是,妈妈就在自己家的楼梯口进行测量,看看需要买多长。妈妈拿着尺子一个楼梯一个楼梯地量长、宽、高(如右下图1)。淘淘等得有些不耐烦了,但看到妈妈认真测量的样子,她决心帮助妈妈,到底怎样测量比较快呢?淘淘在认真思考着。忽然,淘淘想起了一个简单的办法:要测量楼梯铺地毯的长,也就是求楼梯的总高度AB和楼梯的水平长度BC就可以了。因为把楼梯上铺上地毯,也就是楼梯的
Tao Tao Tao's new home to share a good home decoration. Weekend, my mother plans to bring Tao Tao to the mall to buy some rugs. As a result, my mom measured at the stairs in her home to see how long it would take to buy it. Mother holding a ruler a staircase to the length, width and height (as shown in the lower right picture 1). Taotao got some impatience, but to see her mother seriously measure the way she was determined to help her mother, in the end how to measure faster? Tao Tao carefully pondered. Suddenly, Tao Tao remembered a simple way: to measure the length of the staircase carpets, that is, the total height of the stairs and staircases AB and the length of the BC on it. Because the stairs covered with carpets, that is, the stairs