20°46′+35°54′=_______
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20°46′+35°54′=_______
20°46′+35°54′=_______
20°46′+35°54′=_______
20°46′+35°54′
=(20°+35°)+(46'+54')
=55°+100'
=55°+1°40'
=56°40'
56度
34.37°=______° ______’______”
18°______′24°______′32°______′11′______〃19′______〃22′______〃0.2′______°0.6′______°0.4′______°0.46〃______′0.39〃______′1.24〃______′三题,很抱歉。0.4〃______′0.3〃______′1.2〃______′
度分秒运算 16.7°=____°_____′_____ 76°32′24=______°_____′______ 32°27′18=________°43°35′49+56°45′24=______°_____′______56°25′24-43°35′29=______°_____′______69°-57°36′42=______°_____′__
度分秒运算 16.7°=____°_____′_____ 76°32′24=______°_____′______ 32°27′18=________°43°35′49+56°45′24=______°_____′______56°25′24-43°35′29=______°_____′______69°-57°36′42=______°_____′__
28.3°=______°______′,43°36′=_______°
余角和补角20°的余角为______,补角为______.17°的余角为______,补角为______.70°32′的余角为______,补角为______.32°51′18〃的余角为______,补角为______. . 观察以上数据你能得到怎样的结论?你能用a
简单的计算.35度25′36″=______° 90°-58°25′48″=______
56°25′12〃=______度
计算72°35′÷2+18°33′×4=______.
57.18°=_____度______分______秒
39.145°=______度______分_______秒
(1/10)°=_____′,18′=______〃.20′=_____°,25〃=______° 把21°30′用度表示为_________
计算:15°37′+42°51′=______.
24.31°=_____°_______′______〃?怎么算
如图,填空:⑴因为角1=角A,所以______//______( 填理由) ⑵因为角1=____如图,填空: ⑴因为角1=角A,所以______//______( 填理由) ⑵因为角1=______,所以AB//DF(填理由) ⑶因为角B+角BDF=180°,所以______/
(1)2.5°=_____′(2)135°=_____平角(3)23°30′_____°(4)78.36°=____°____′___〃(5)52°45′—32°46′=____°____′(6)18.3°+26°34′=______′(7)0.25°=____′___〃(8)1800〃=______′______〃急用!!
20°30′=_______°52°45′- 32°46′=_______°_____′18.3°+ 26°34′=______°_____′
77°52′+32°43′-21°17′=________37°15′ *3=______