解:∵1°=60′1′=60″
∴30.54°=30°+0.54°
=30°+0.54x60360问答′肢睁
=30°+32.4′模培
=30°+32′+0.4x60″
=30°+32′+24″
=30°32′24″
答历码岁:等于30度32分24秒。
解:∵1°=60′1′=60″
∴30.54°=30°+0.54°
=30°+0.54x60360问答′肢睁
=30°+32.4′模培
=30°+32′+0.4x60″
=30°+32′+24″
=30°32′24″
答历码岁:等于30度32分24秒。
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