求答案!急急急急急!!!!!
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(1)C=56.52;
(2)C=3.768;
(3)r =0.4;
(4)C=3.14;
(5)d=50;
(6)d=0.3;
(7)d=20;
(8)d=1;
(9)r=9;
(10)r=0.25;
(11)r =15;
(12)r=4.5;
(13)C=4.196;
(14)r =2;
(15)r=3;
(16)C=50.24;
(17)C=3.14;
(18)C=6.28;
(19)C=125.6;
(20)r=3.5;
(21)r=0.3;
(22)C=43.96;
(23)C=31.4;
(24)r=0.5;
(25)d=0.9;
(26)C=2.512;
(27)C=12.56;
(28)C=18.84;
以上数据单位均为:㎝
(2)C=3.768;
(3)r =0.4;
(4)C=3.14;
(5)d=50;
(6)d=0.3;
(7)d=20;
(8)d=1;
(9)r=9;
(10)r=0.25;
(11)r =15;
(12)r=4.5;
(13)C=4.196;
(14)r =2;
(15)r=3;
(16)C=50.24;
(17)C=3.14;
(18)C=6.28;
(19)C=125.6;
(20)r=3.5;
(21)r=0.3;
(22)C=43.96;
(23)C=31.4;
(24)r=0.5;
(25)d=0.9;
(26)C=2.512;
(27)C=12.56;
(28)C=18.84;
以上数据单位均为:㎝
追答
正解来了,不采挺可惜
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