切一个正方形怎样能切成三角形平行四边形和梯形
来源：学生作业帮助网 编辑：六六作业网 时间：2025/02/09 16:20:06
切一个正方形怎样能切成三角形平行四边形和梯形
切一个正方形怎样能切成三角形平行四边形和梯形
切一个正方形怎样能切成三角形平行四边形和梯形
切成三角形时,需一刀就行,使正方形保留一个角（不管是过不过另外的角）下刀就可以.
切成平行四边形,需要两刀,两刀必须平行下刀,切掉的每个部分必须有两个角（也可以只过一个角）.
切成梯形,一刀就行,切掉的部分必须有两个角（也可以只过一个角）,这是直角梯形.若要不是直角梯形,需两刀,方法同切成平行四边形,只是两刀不一定平行就行了.
就这样切.
投入与如题脱衣uii如有图图图图玉兔图utyutyu图腾u utyutuututututu热突然有人认同他又突然一条人影儿一样让他有他又突然又让他也让他要让他依然天又热天又热也挺热一天热有人听有人要让他如同有人同意rtyrtyretryreyretryryteye65ertyreytr566tertrgfhfgjg如同一条用途 utrurru 还估计看见了快乐改革和价格和机会就看见看对方...
全部展开
投入与如题脱衣uii如有图图图图玉兔图utyutyu图腾u utyutuututututu热突然有人认同他又突然一条人影儿一样让他有他又突然又让他也让他要让他依然天又热天又热也挺热一天热有人听有人要让他如同有人同意rtyrtyretryreyretryryteye65ertyreytr566tertrgfhfgjg如同一条用途 utrurru 还估计看见了快乐改革和价格和机会就看见看对方规范会更加积极解决快快快快快快了蛋糕好就看了换个家房间干净感觉更好九发股份 根据福建福建经济结构法计算规范及公告附件格式发送给发神经共分十公分几个师傅就是个附件三公分计算该附件三公分三个积分公司登记风格设计规范的计算规范设计的广告反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复反反复复
收起