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see answer thanks
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堆砌问题,大三角的斜边不在一条直线上
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Even they are the same areas but they are not the same shape; the diagonal lines in both shapes are not straight lines. The slopes are 2/5 and 3/8 for dark green and red areas accordingly.
3 m, v6 S+ X0 _5 u. A公仔箱論壇On the other hand, if you imagine to fill the missing part to make it as a rectangle; the missing area of the top shape is 33 blocks = (5 * 2 / 2 = 5) + (8 * 3 / 2 = 12) + (8 * 2 = 16)
! v1 ]/ J% X2 L8 ?7 {But for the missing areas of the bottom shape is 32 blocks = (5 * 2 / 2 = 5) + (8 * 3 / 2 = 12) + (5 * 3 = 15)
Even they are the same areas but they are not the same shape; the diagonal lines in both shapes are not straight lines. The slopes are 2/5 and 3/8 for dark green and red areas accordingly.tvb now,tvbnow,bttvb" D( E2 i( S8 i0 o0 N
On the other hand, if you imagine to fill the missing part to make it as a rectangle; the missing area of the top shape is 33 blocks = (5 * 2 / 2 = 5) + (8 * 3 / 2 = 12) + (8 * 2 = 16) 公仔箱論壇6 J' A* M& W# ?) V8 x! H! l2 Z* h% u5 [
But for the missing areas of the bottom shape is 32 blocks = (5 * 2 / 2 = 5) + (8 * 3 / 2 = 12) + (5 * 3 = 15)
interesting
下面的图里     红色的 面积小了
不知道, 有沒有答案呀!!!
SEE see
。。。想不通
thanks
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