46°30′36″怎么变成46.51°
问题描述：
46°30′36″怎么变成46.51°
答
46°30′36″=46.51° 30′=0.5° 36″=0.6′=0.01° 46°30′36″=46°+0.5°+0.01°=46.51°
46°30′36″怎么变成46.51°
46°30′36″=46.51° 30′=0.5° 36″=0.6′=0.01° 46°30′36″=46°+0.5°+0.01°=46.51°