怎样剪拼 ?　　把一个正五边形纸片剪开拼成一个正五棱柱模型 ,使五棱柱的全面积等于原正五边形的面积 ,怎样剪拼 ?北京师大二附中 ( 1 0 0 0 88)张鸿菊提供(答案在本期找 )智慧窗《怎样剪拼 ?》参考答案　　如图 ,沿所有虚线剪开 ,以其中小五边形为正五棱柱的下底 ,以五个小长 How to cut the spell? Cut a regular pentagonal piece of paper into a positive pentagonal prism model so that the entire area of ​​the pentaprism is equal to the area of ​​the original regular pentagon. How do you cut it? Beijing Normal University 2nd Attachment (1 0 0 0 88) Zhang Hongju provides (answer in this issue) wisdom window “How to cut fight?” Refer to the answer figure, cut along all dotted lines, in which the small pentagon is the bottom of the five-prism, with five small long