一个圆柱的侧面展开是正方形，圆柱的底面半径是0.2分米，圆柱的高是 分米．
=0.25= ：32=8÷ = %= 折．
== ÷ = （小数）
÷5== =0.6=15÷ ．
==0.25==．
15： ==36÷ = %
=0.25= ：32=8÷ = %= 折．
=
= ÷ = （小数）
=
=0.6=15÷ ．
=
=0.25=
=
．
=36÷ = %
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