180°-30°15'-70°30'=

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/14 09:35:33

180°-30°15'-70°30'=
180°-30°15'-70°30'=

180°-30°15'-70°30'=
180°-30°15'-70°30'
=179°60'-30°15'-70°30'
=149°45'-70°30'
=79°15

180°-30°15'-70°30'
=180º-100º45′
=79º15′

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