第7课:引言:变化中隐藏着不变

变化的图形中,有时隐藏着不变的规律。[br]有些不变的规律,因为简洁易记,或非常重要,而被我们知悉。[br]请看下面两个问题:
[code]例如:[/code]在[code][/code]直角三角形中,变化的边长中隐藏着一个不变的关系,你知道是什么吗?[br][img]data:image/png;base64,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[/img]
[code]又例如:[/code]在[code]圆[/code]中,旋转的点和直径中,隐藏着一个不变的关系,你知道是什么吗?[br][img]data:image/png;base64,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[/img]
Close

Information: 第7课:引言:变化中隐藏着不变