计算:78°18′=________°,180°-35°19〃=________.
计算:78°18′=________°,180°-35°19〃=________.
计算:(1)15°30′=________; (2)25.35°________; (3)6.75°=________;
37.51°等于_______°________′________″
17°14'24''=________度
25°36′=________° 27.3°=________° ________′ 270″=_______′=___
计算:①36°27′38〃+133°41′54〃=___________②100°-37°59′45〃=________
77°52′+32°43′-21°17′=________
She has no friends=She _______ ________ ________ ________
98°32′45〃+15°23′45〃等于________
已知∠a的余角等于36°,那么∠a=________度?
已知∠a=36°42′15″,那么∠a的余角等于________.
计算:a分之2-a分之1=________.