1、长方体和正方体表面积或体积计算练习题 49cm6cm9cm19cm9cm9cm7cm3cm9cm18cm7cm7cm4m4cm9cm20cm4m4m9m2cm11cm18cm9m9m10m5cm7cm15cm10m10m4dm4cm14cm19cm4dm4dm19m3cm11cm20cm19m19m11m4cm13cm16cm11m11m20m2cm13cm19cm20m20m5dm6cm14cm20cm5dm5dm8cm2cm7cm20cm8cm8cm7m3cm11cm15cm7m7m16m6cm9cm20cm16m16m17m3cm6cm16cm17m17m9m4cm11cm16cm9m9
2、m14m2cm13cm17cm14m14m9dm4cm11cm19cm9dm9dm14dm5cm7cm19cm14dm14dm10cm5cm9cm18cm10cm10cm17dm6cm8cm19cm17dm17dm12cm4cm6cm17cm12cm12cm5cm5cm14cm15cm5cm5cm4dm4cm10cm18cm4dm4dm12dm3cm13cm18cm12dm12dm17dm5cm10cm15cm17dm17dm7dm3cm12cm20cm7dm7dm7m4cm10cm20cm7m7m12cm4cm9cm18cm12cm12cm20m4cm10cm20cm20m20m6m4cm10cm16cm6m6m13m5cm7cm16cm13m13m12cm6cm6cm18cm12cm12cm9cm6cm6cm20cm9cm9cm20m2cm10cm18cm20m20m9dm6cm14cm