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地图上一度的距离是多少千米

2025-03-15 09:49:35

推荐回答（1个）

回答（1）：

地球赤道上环绕地球一周走一圈共40075.04公里,而@一圈分成360°,而每1°(度)有60,每一度一秒在赤道上的长度计算如下：
　　40075.04km/360°=111.31955km
　　111.31955km/60=1.8553258km=1855.3m
任意两点距离计算公式为
　　d＝111.12cos{1/[sinΦAsinΦB十cosΦAcosΦBcos(λB—λA)]}
　　其中A点经度,纬度分别为λA和ΦA,B点的经度、纬度分别为λB和ΦB,d为距离.
所以可知每度大概为111千米
比如北京 B = 40、cosB = 0.766,经度变化1度,则东西方向距离变化 85.567km

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