三角形面积与平行四边形的关系
2011-10-01 11:54
本范例演示了如何通过几何变换推导任意三角形的面积公式。通过将三角形绕中点旋转，可以将其与另一个全等三角形组合成一个平行四边形。由此可知，任意三角形的面积等于与其等底等高的平行四边形面积的一半，且三角形的高等于平行四边形的高。这有助于学生直观理解三角形面积的计算原理。
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