勾股定理3(勾股定理)
来源:学生作业帮 编辑:搜搜做题作业网作业帮 分类:数学作业 时间:2024/08/17 14:17:04
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![勾股定理3(勾股定理)](/uploads/image/z/20017444-4-4.jpg?t=%E5%8B%BE%E8%82%A1%E5%AE%9A%E7%90%863%28%E5%8B%BE%E8%82%A1%E5%AE%9A%E7%90%86%29)
解题思路: 这是一个实际问题,同学们要善于从日常所熟悉的事物中捕捉和提炼相关的数学信息.由生活常识知墙角为直角,故而可将这个实际问题归纳为这样一个数学问题:在直角三角形中,已知边BC和AC,如何求AB?很显然要用勾股定理.在应用勾股定理解题时,我们要具体问题具体分析,先确定哪个角是直角、哪条边是直角边、哪条边是斜边,不要形成∠C总是直角、边c总是斜边的思维定势.
解题过程:
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最终答案:略
解题过程:
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最终答案:略