지구둘레를c지구반지름을R라하면다음과같은비례식을세울수있다호AB의길이:지구의둘레-호AB의중심각:360˚즉900:c=7˚:360˚이므로c=360˚*900kmw6.286km~
[무물보AI] 답변 로딩중...