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应用数学知识解决实际问题是学习数学的目的.灵活应用代数式,可以解决许多实际问题. 例1 用a米长的篱笆材料,在空地上围成一个绿化场地,现有两种设计方案:一种是围成正方形的场地;另一种是围成圆形的场
Applying mathematics knowledge to solve practical problems is the purpose of learning mathematics. Flexible application of algebraic formulas can solve many practical problems. Example 1 With a meter long fence material, a green space is formed on the open ground. There are two kinds of design solutions: Is a site that forms a square; the other is a field that is enclosed in a circle