(1)23°30〃=_°;78.36°=___°____′____〃; (2)52°45′-32°46′=___°___′

问题描述:

(1)23°30〃=_°;78.36°=___°____′____〃; (2)52°45′-32°46′=___°___′

(1)23°30〃=23.5_°;78.36°=_78__°_21___′__36__〃; (2)52°45′-32°46′=__19_°_59__′