平行四边形面积的计算

Page 1 <img data-url='document/-56813498550346895d9b8a58.html?page=1' data-page='1' class='cut-thumb lazyload' alt='Page 1: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/1.jpg' width='140' height='200' /> Page 2 <img data-url='document/-56813498550346895d9b8a58.html?page=2' data-page='2' class='cut-thumb lazyload' alt='Page 2: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/2.jpg' width='140' height='200' /> 课前游戏：比比谁的手儿巧

将一张长方形纸任意剪出两个图形，再拼出一个你喜欢的形状！

Page 3 <img data-url='document/-56813498550346895d9b8a58.html?page=3' data-page='3' class='cut-thumb lazyload' alt='Page 3: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/3.jpg' width='140' height='200' /> Page 4 <img data-url='document/-56813498550346895d9b8a58.html?page=4' data-page='4' class='cut-thumb lazyload' alt='Page 4: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/4.jpg' width='140' height='200' /> Page 5 <img data-url='document/-56813498550346895d9b8a58.html?page=5' data-page='5' class='cut-thumb lazyload' alt='Page 5: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/5.jpg' width='140' height='200' /> Page 6 <img data-url='document/-56813498550346895d9b8a58.html?page=6' data-page='6' class='cut-thumb lazyload' alt='Page 6: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/6.jpg' width='140' height='200' /> Page 7 <img data-url='document/-56813498550346895d9b8a58.html?page=7' data-page='7' class='cut-thumb lazyload' alt='Page 7: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/7.jpg' width='140' height='200' /> Page 8 <img data-url='document/-56813498550346895d9b8a58.html?page=8' data-page='8' class='cut-thumb lazyload' alt='Page 8: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/8.jpg' width='140' height='200' /> Page 9 <img data-url='document/-56813498550346895d9b8a58.html?page=9' data-page='9' class='cut-thumb lazyload' alt='Page 9: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/9.jpg' width='140' height='200' /> 20 平方厘米

Page 10 <img data-url='document/-56813498550346895d9b8a58.html?page=10' data-page='10' class='cut-thumb lazyload' alt='Page 10: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/10.jpg' width='140' height='200' /> 35 平方分米

Page 11 <img data-url='document/-56813498550346895d9b8a58.html?page=11' data-page='11' class='cut-thumb lazyload' alt='Page 11: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/11.jpg' width='140' height='200' /> Page 12 <img data-url='document/-56813498550346895d9b8a58.html?page=12' data-page='12' class='cut-thumb lazyload' alt='Page 12: 平行四边形面积 的计算' loading='lazy' src='data:image/gif;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mNk+P+/HgAFhAJ/wlseKgAAAABJRU5ErkJggg==' data-src='https://reader031.cupdf.com/reader031/viewer/2022012304/56813498550346895d9b8a58/html5/thumbnails/12.jpg' width='140' height='200' /> 5 4 20 5 4 20

8 3 24 8 3 24

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平行四边形面积 的计算

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平行四边形面积的计算