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1、534（5 3 + 5 4 + 4 3）2=5 3 2 + 5 4 2 + 4 3 2 =talaby iy O .tooraK, iiroq oz viV Gadargw iiz3cm3cm10cm1034 + 332 =（103 +10 3 + 3 3）2=1032 + 1032 + 332 =talaby iy O .tooraK, iiroq oz viV Gadargw iiztoirbljiz byx kX.vlhw Ordw toirbljiz byx iy taJsyAordw.Oirkz.OiadoR Ny taaJcaVwklbriday taJsy toirbljiz 6
2、 Gadargw Ny coiAadaly virimosozYakx bq Ny 6 Gadargw iiztaaJcaVwHarilcaz Ordw Ny coi .( Nikcy : )tooraK, taJsy toirbljiz byx iiz Gadargw iizS =tGacmHafhagasw Oiky )kraJlaV vy ?( iigasw tajikV Sabz dw Aadaq tw bz kdoy $iEad, dEimEtR SiAnz V iigasw tajikV Sabx iy KV dw klbriday . AirmaQ oz Ordw Ny vloX
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4、iiz talaby Ny Nikz taJsy toirbljiz byx iiz talaby Ny ( )taVz w Gadargw iiz 8m2talaby Gadargw iizSagoryGadargw iiz talaby Ny ( ) taKz YaksoX .Ordw iy 2 taKz Yakskb . taVz w Nikz taJsy toirbljiz byx iiz AirmaQ oz aS =tGaaa662aaS =tGa2( )( )48cm8cm8cm2cm2cm2cmkdoy taKz vy? iiz talaby iiz byx iiz Gadarg
5、wiijiQ taJsy torbljiz iiz talaby Nybyx iiz GadargwYakx taJsy toirbljizAirmaQ oz Aordw Ny ( ) .iiz talaby Ny ( ) .talaby Ny taVz w Nikx Gadargw Nikz taJsy byx iiz viV Gadargw iiz54 dm2kdoy vy? iiz Gadargw iiz talaby NyAnz Ordw toirbljiz byx toirbljiz byx vlgaX . iy ioiikoz Nikz Aordw vlhw taJsy toirbljiz byx Nikz AirmaQ oz Ordw Ny 1cm1cm2cm1cm1cmVidalkxbztariK,1cm用用3个棱长个棱长1厘米的厘米的正方体搭成右图，正方体搭成右图，它的表面积是（它的表面积是（ ）a. 14平方厘米平方厘米b. 16平方厘米平方厘米c. 18平方厘米平方厘米a10厘米厘米5厘米厘米6厘米厘米你会求下面图形的表面积你会求下面图形的表面积吗？吗？5厘米厘米5厘米厘米5厘米厘米10厘米厘米5厘米厘米5厘米厘米