题目内容
0.5°=
23°30′=
3.76°=
25.72°=
15°48′36″=
3600″=
30
30
′=1800
1800
″;23°30′=
23.5
23.5
°.3.76°=
3
3
°45
45
′36
36
″.25.72°=
25
25
°43
43
′12
12
″.15°48′36″=
15.81
15.81
°;3600″=
60
60
′=1
1
°.分析:根据1°=60′,1′=60″,1″=(
)′,1′=(
)°进行计算即可.
1 |
60 |
1 |
60 |
解答:解:∵0.5°=0.5×60′=30′,30′=30×60″=1800″,
∴0.5°=30′=1800″,
∵30÷60=0.5,
∴23°30′=23.5°;
∵0.76×60=45.6,0.6×60=36.
∴3.76°=3°45′36″,
∵36÷60=0.6,
48.6÷60=0.81,
∴15°48′36″=15.81°,
∵3600÷60=60,60÷60=1,
∴3600″=60′=1°
故答案为:30,1800,23.5,3,45,36,25,43,12,15.81,60,1.
∴0.5°=30′=1800″,
∵30÷60=0.5,
∴23°30′=23.5°;
∵0.76×60=45.6,0.6×60=36.
∴3.76°=3°45′36″,
∵36÷60=0.6,
48.6÷60=0.81,
∴15°48′36″=15.81°,
∵3600÷60=60,60÷60=1,
∴3600″=60′=1°
故答案为:30,1800,23.5,3,45,36,25,43,12,15.81,60,1.
点评:本题考查了度分秒之间的换算的应用,注意:1°=60′,1′=60″,1″=(
)′,1′=(
)°.
1 |
60 |
1 |
60 |

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