题目内容:
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.-66.420m,+31.401m
参考答案:
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.-66.420m,+31.401m