• 2022-06-07 问题

    已知边长DMN=73.469m,方位角αMN=115°18′12″,则ΔxMN与ΔyMN分别为: A: +31.401m,+66.420m B: +31.401m,-66.420m C: -31.401m,+66.420m D: -31.401m,-66.420m

    已知边长DMN=73.469m,方位角αMN=115°18′12″,则ΔxMN与ΔyMN分别为: A: +31.401m,+66.420m B: +31.401m,-66.420m C: -31.401m,+66.420m D: -31.401m,-66.420m

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