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半圆

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  • 半圆面积怎么求??

    陈亮 开发者_JAVA百科 2021-04-02 00:34 半圆面积:S=(πr²)÷2公式说明:π是圆周率,等于3.14,r是圆的半径应用实例:半圆的半径r是3,面积S=πr²÷2=3.14x3^2÷2=14.13希望帮到你望采纳谢谢加油贺雄伟[详细]

    2023-03-11 20:39 分类:问答
  • Automatic initialization routine in C++ library?

    If i have a header file foo.h and a source file foo.cpp, and foo.cpp contains something along the lines of:[详细]

    2022-12-28 14:49 分类:问答