Actually the upper triangle (the whole triangle) is smaller than the lower triangle. Look at the RED triangle, the top corner of the upper triangle is started at the cross line +, however the same position of the lower triangle has a little higher position. If the grid line is a square, the upper RED triangle (its top corner) should not started from the cross line +. In a sense, both of the 2 triangles are NOT the same size.作者: doylexx 時間: 2010-2-22 08:40 PM
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.公仔箱論壇 Q2 ]9 g& g, v$ d& a
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) . Q* }$ Z# D+ S" r1 |" |1 x公仔箱論壇But for the missing areas of the bottom shape is 32 blocks = (5 * 2 / 2 = 5) + (8 * 3 / 2 = 12) + (5 * 3 = 15)作者: foreverfriends 時間: 2010-6-5 03:32 PM
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. . t: W% k) O1 c) r$ Z" ntvb now,tvbnow,bttvbOn 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) & [- i1 U3 l1 GBut for the missing areas of the bottom shape is 32 blocks = (5 * 2 / 2 = 5) + (8 * 3 / 2 = 12) + (5 * 3 = 15)作者: wai1685 時間: 2010-6-10 03:05 PM
interesting作者: gonganhang 時間: 2010-6-11 01:09 AM
下面的图里 红色的 面积小了作者: AAAecrofg 時間: 2010-6-11 01:16 AM
不知道, 有沒有答案呀!!!作者: jumpingcat 時間: 2010-6-11 09:25 AM
000000000000000000000作者: jjm123 時間: 2011-1-3 10:30 AM
more permiter used on the second one作者: xgx 時間: 2011-1-7 01:20 PM
睇答案作者: edisoncheng 時間: 2011-5-3 12:38 AM
i dont know作者: jlli1980 時間: 2011-5-3 09:55 AM
吾识，开估啦作者: pc2529 時間: 2011-5-28 06:18 PM
提示: 作者被禁止或刪除 內容自動屏蔽作者: 风GG 時間: 2011-6-6 02:45 PM
这是怎么回事作者: kiss911 時間: 2011-6-16 02:32 PM
作者: ivanz1127 時間: 2011-7-29 10:55 PM
開估開估作者: benson93921 時間: 2011-7-29 11:38 PM
ccccc作者: 灰君 時間: 2011-7-30 03:23 AM
ghrttttttttttttttttt作者: AAAecrofg 時間: 2011-7-30 04:02 AM
唔知呀, 看答案!作者: 8608 時間: 2011-8-5 01:38 AM
不知道，看看答案！作者: thedog1121 時間: 2011-8-5 11:58 AM
saw this one couple years before作者: 我想看黄片 時間: 2011-9-10 12:11 AM
唔知道作者: 我想看黄片 時間: 2011-9-10 12:12 AM
估不到作者: bccd 時間: 2011-9-12 01:09 AM
看答案作者: leo777win100 時間: 2011-9-12 01:17 AM
应该算算面积就出来了吧作者: southwire 時間: 2011-9-14 07:11 AM
The 2 big diagram is not triangle. The small red triangle and the small blue triangle are not similar triangle! The long line included the long side of red triangle and blue triangle is not a straight line. It curves slightly downward on the upper diagram. And it curves slightly upward on the lower diagram. Therefore, when calculating area of the big diagram is not just 1/2 x height x length.作者: hing369852 時間: 2011-9-20 02:12 AM
上面的那一幅圖應該不是一個三角形,仔細一看,紅+綠的那一部那可不是一條直線作者: pray4u 時間: 2011-9-20 11:35 AM
