速求黄冈小状元六年级上数学43页答案
来源:学生作业帮 编辑:百度作业网作业帮 分类:数学作业 时间:2024/08/17 08:01:51
速求黄冈小状元六年级上数学43页答案
注:是北师大版
注:是北师大版
![速求黄冈小状元六年级上数学43页答案](/uploads/image/z/4290327-63-7.jpg?t=%E9%80%9F%E6%B1%82%E9%BB%84%E5%86%88%E5%B0%8F%E7%8A%B6%E5%85%83%E5%85%AD%E5%B9%B4%E7%BA%A7%E4%B8%8A%E6%95%B0%E5%AD%A643%E9%A1%B5%E7%AD%94%E6%A1%88)
(直径)(无数)(2)(4)(12.56)(12.56)(18)(1.5)(5:2)(9:4)(100.48)(3)(16.56)(12.56)(4)(12.56)(圆)(1.57)(对)(对)(错)(错)(对)(D)(C)(C)(D)(C)((1)面积:(10+5)×2=30(cm)30-15.7=14.3(cm)25×3.14=78.5(平方厘米)78.5÷2=34.25(平方厘米)10×5=50(平方厘米)50-39025=10.75(平方厘米)周长:10×3.14=31.4(cm)3.14÷2=15.7(cm)10÷2=5(cm)(2)C=3.14÷4÷2+2×3.14×4×0.125+4 S:3.14÷16×0.125-4×2÷2
=6.28+3.14+4 =3.14×16×0.125-4
=13.42(cm) =2.28(平方厘米)
=6.28+3.14+4 =3.14×16×0.125-4
=13.42(cm) =2.28(平方厘米)