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用度表示 (1)38°24′=______; ( 2)56°45′36″= _______.
人气:270 ℃ 时间:2019-08-21 10:23:19
解答
(1)38°24′
=38°24/60°
=38.4°
( 2)56°45′36″
= 56°45′36/60'
=56°45.6′
=56°45.6/60°
=56.76°
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