請大家想想看啦！ * k6 H! o; a) B, Z( _2 K& b% N" nTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。 7 }) f- I, C' V) ?! \. E! _哈哈，9 x7 ~3 I2 n, N4 M0 a$ L
' [6 u1 @6 ?: ] / n* D g7 `- J# A2 R; rTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。tvb now,tvbnow,bttvb. c1 ?0 [' b% j' N) r2 q4 Q
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tvb now,tvbnow,bttvb1 ~) d& h0 @8 ^9 c# A3 Q2 H 作者: beckyken 時間: 2010-1-13 02:52 AM
It looks really clear that your drawing having no change. Each cutting shape is matched with the other shapes. However, most of the cut triangles are too small to combine with the other cut triangle to become 1. By mathmetically, the area remain the same as 64. According to your drawing / cutting, you have 2 long triangle with 2 ladder shapes. The area of 2 long triangle is 2 each of (base x height / 2), which is 2x(3x8/2)= 24, and the area of 2 ladder shapes is 2each of (upper side + lower side)xheight /2), which is 2x((3+5)x5/2)=40. It ended up the total area is 24+40= 64. This is the same area as 8x8=64.作者: chew8913 時間: 2010-1-29 04:15 PM
hahahaha作者: fannhf 時間: 2010-1-29 05:46 PM
There are a gap between the slope of 甲 and 丁 - a }) }$ S; U' D; q. gThere are also find the gap between the slope of 乙 and 丙作者: nycplayboy 時間: 2010-1-30 06:25 AM
我知道作者: nycplayboy 時間: 2010-1-30 06:28 AM
有个长方形.有个正方形作者: masami198763 時間: 2010-1-30 09:45 AM
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