長(zhǎng)方體和正方體的體積教學(xué)ppt課件備課講稿

長(zhǎng)方體和正方體的體積教學(xué)PPT課件4厘米1厘米1厘米長(zhǎng)：厘米寬：厘米高：厘米411體積：立方厘米43厘米3122厘米224長(zhǎng)方體的體積＝長(zhǎng)×寬×高V＝abhhab一個(gè)長(zhǎng)方體,長(zhǎng)7cm,寬4cm,高3cm,它的體積是多少?V=abh=7×4×3=84(cm3)長(zhǎng)方體的體積＝長(zhǎng)×寬×高棱長(zhǎng)棱長(zhǎng)棱長(zhǎng)棱長(zhǎng)棱長(zhǎng)棱長(zhǎng)正棱長(zhǎng)棱長(zhǎng)棱長(zhǎng)長(zhǎng)方體的體積＝長(zhǎng)×寬×高棱長(zhǎng)棱長(zhǎng)棱長(zhǎng)aaaV=aaaV=a3一塊正方體石料，棱長(zhǎng)是６dm，這塊石料的體積是多少立方分米？V=a3=63=6×6×6=216（dm3）答：這塊石料的體積是216/c03b/737./6a1c/739./f501/759./182f/719./2a24/752./503f/756./bb77/727./491a/757./5b75/761./d81c/757./804b/721./8d48/746./51ab/750./12b3/732./fa28/746./c65d/721./1a18/724./da7a/746./e29f/718./eaa9/739./94e8/729./120b/744./1a7a/737./ad38/771./ceb6/753./1afc/728./e758/749./51a5/740./d5af/733./ab10/762./2652/722./ac1a/757./0167/744./5c89/734./000b/738./4f4e/738./1308/725./2efa/769./d6a2/766./8b81/750./4355/729./708e/740./2006/755./5f99/757./ca40/745./9391/750./e69b/721./5950/725./1a14/741./88e5/749./cdd5/724./7cc3/738./efc7/758./7e21/743./ecdb/783./6b5b/740./22f8/746./fb49/758./f29e/748./a25f/758./ecb1/748./53bf/733./76ec/759./9c27/733./d278/738./2bc6/747./9806/746./95cf/759./43fc/754./cef6/725./b169/729./1666/725./81c4/746./f744/752./270a/719./9582/731./44c7/750./ff27/747./6191/723./20df/743./e2ee/744./2802/731./aabf/756./35ce/771./f60f/739./52f0/726./7037/722./2f0e/759./cb1a/734./3e3b/744./60ed/728./b8fe/721./d671/717./ad91/759./649c/727./4789/764./8989/750./4c2c/764./861a/760./f6b6/760.html長(zhǎng)方體或正方體底面的面積叫底面積。底面底面長(zhǎng)方體的體積＝長(zhǎng)×寬×高V＝shhab底面積正方體的體積＝棱長(zhǎng)×棱長(zhǎng)×棱長(zhǎng)V＝sha底面積aa長(zhǎng)方體（或正方體）的體積＝底面積×高底面底面V＝sh努力吧！計(jì)算下面立體圖形的表面積和體積。(單位：分米)555921.5填一填一根長(zhǎng)方體木料，長(zhǎng)5m，橫截面的面積