在一张图纸上,比例尺是1:20000,那么甲地到乙地的图上距离是1.5厘米,它们的实际距离是( )A.2500
\u2460\u56fe\u4e0a\u7684\u6bd4\u4f8b\u5c3a\u662f1\uff1a20000\uff0c\u5728\u56fe\u4e0a\u8ddd\u79bb5\u5398\u7c73\uff0c\u6c42\u51fa\u4fe9\u5730\u4e4b\u95f4\u7684\u5b9e\u9645\u8ddd\u79bb\uff1f \u2461\u5728\u53e6\u4e00\u5e45\u6bd4\u4f8b\u5c3a\u4e3a1:10000\u7684\u2460\u56fe\u4e0a\u7684\u6bd4\u4f8b\u5c3a\u662f1\uff1a20000\uff0c\u5728\u56fe\u4e0a\u8ddd\u79bb5\u5398\u7c73\uff0c\u6c42\u51fa\u4fe9\u5730\u4e4b\u95f4\u7684\u5b9e\u9645\u8ddd\u79bb\uff1f
5\u00f71\uff1a20000=100000cm=1000m
\u2461\u5728\u53e6\u4e00\u5e45\u6bd4\u4f8b\u5c3a\u4e3a1:10000\u7684\u5730\u56fe\u4e0a\uff0cAB\u4e24\u5730\u4e4b\u95f4\u7684\u8ddd\u79bb\u662f\u51e0\u5398\u7c73\uff1f\uff08\u63d0\u793a\uff1a\u56fe\u636e\u662f5\u5398\u7c73\uff09
100000*1:10000=10cm
\u5982\u679c\u5bf9\u4f60\u6709\u5e2e\u52a9\uff0c\u8bf7\u91c7\u7eb3\u3002\u8c22\u8c22\u3002
\u8fd9\u53ef\u662f\u6700\u5148\u56de\u7b54\u7684\u54df\u3002\u795d\u8fdb\u6b65\uff01\uff01\uff01
1)500m 2.5*20000=50000cm=500m
2)5m 250000/50000=5m
1 |
20000 |
故选:C.
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