论文部分内容阅读
你知道梯形蝴蝶定理吗?它是以其独特的外形而命名的定理,它反映了面积之间的数量关系.已知:如图1所示,在梯形ABCD中,AB∥CD,对角线AC、BD相交于点O,求证
Do you know the trapezoidal butterfly theorem? It is named after its unique shape theorem, which reflects the quantitative relationship between the area.It is known: as shown in Figure 1, ABCD in the trapezoidal ABCD, diagonal AC, BD intersect at point O, verify