35°35′-25°45′=?180°-(48°39′40″+67°41′35″)=?
问题描述:
35°35′-25°45′=?180°-(48°39′40″+67°41′35″)=?
答
35°35′-25°45′=9°50′
180°-(48°39′40″+67°41′35″)
=178°118′120″-115°80′75″
=63°38′45″