为什么把边长为1.3m的正方形裁剪为边长为0.8m和2.1m的长方形但面积减小了?没有将原有的正方形的任何一部分去掉.把边长为1.3m的正方形裁剪成2个边长分别为1.3m和0.5m的相同的直角三角形，还

为什么把边长为1.3m的正方形裁剪为边长为0.8m和2.1m的长方形但面积减小了?没有将原有的正方形的任何一部分去掉.把边长为1.3m的正方形裁剪成2个边长分别为1.3m和0.5m的相同的直角三角形，还
为什么把边长为1.3m的正方形裁剪为边长为0.8m和2.1m的长方形但面积减小了?
没有将原有的正方形的任何一部分去掉.
把边长为1.3m的正方形裁剪成2个边长分别为1.3m和0.5m的相同的直角三角形，还有有2个上底为0.5m，下底为0.8m，直角边为0.8m的直角梯形。然后用他们就拼成了边长为0.8m和2.1m的长方形。

为什么把边长为1.3m的正方形裁剪为边长为0.8m和2.1m的长方形但面积减小了?没有将原有的正方形的任何一部分去掉.把边长为1.3m的正方形裁剪成2个边长分别为1.3m和0.5m的相同的直角三角形，还
请将它的裁剪方法告诉我,你的问题应该曾经在魔术中表演过,我没猜错的话应该是由于视觉错误的原因.

边长为1.3m的正方形面积=1.3X1.3=1.69平方米
边长为0.8m和2.1m的长方形面积=0.8X2.1=1.68平方米
所以减少了0.01平方米
原有的正方形的任何一部分去掉，就是你的长方形的长和宽的数据不精确，有误差造成的。

因为它减去0.8m它的面积也就减少了，2.1也其次

SH E-wife

from yesterday to today there tomorrow, thank God

let you stay with me heartache of love hearts
wait
heart
because you embrace

first met...

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SH E-wife

from yesterday to today there tomorrow, thank God

let you stay with me heartache of love hearts
wait
heart
because you embrace

first met, I'm very relieved anxiety
explore each other may be some blind

found in daily life in this world

I did not know better than you

friends and sisters have not enough to describe the pride

support our understanding and tolerant wife

wife Please join us WANTED TO INVITE
I remember the journey to permanent contract

because of the role of red wine, and now some excitement,mac makeup, was to have three Sleeping, some objective reasons why the plan can be interrupted, but it does not matter, or to thank my wife gave me the intimate and warm, whether I'm happy not happy You are willing to listen to those who do, give me a steady stream of positive energy, and finally attached to our love song:

Although our souls tonight, just a prelude. Three Le Diandian to holding the cake, the point of red wine, sat chatting with impunity inside the box, but unfortunately Qiuqiu and Zhao Zhao did not appear, but I still feel your blessing, huh, huh. Happy go happy birthday this year, I kind of worry may come from a person,Dior sunglasses, may come from something, but the new month, new year, there must be a new beginning. To round down to laugh, continue going and lively, not because of temporary difficulties and lost his own, which is precisely the test. Well go on it! We are toast,Mac makeup!


Photo Description: Cheers ~ Oh to be happy ~


Photo Description: Standard action, blocking BABY FACE ~ ~ ~ hee hee ~


Photos Description: The promise of three wishes, it is important people are in the wish list ~


Photo Description: 12 Rose ~ I Love ~
2010-year birthday, with the pace of the bell come. 8.1 is the Army Day, Lunar New Year is also my birthday, really happened. Shuttles back from Guangzhou, warm home, mom and dad very happy, brother, nephew, his wife is very happy, my wife even more excited, because we can work together last birthday. I used the Lunar birthday, never sensible beginning of the lunar year are with the family, birthday, eat, and then brothers and sisters, sing K, in order to greet the new year. Every this time, I feel most happy, the whole family enjoy the fun and jolly, more than any else.

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