在1:20000的地图上距离为2cm,求实际距离
\u4e00\u5e45\u5730\u56fe\u7684\u6bd4\u4f8b\u5c3a\u662f1\uff1a20000\u8bf4\u660e\u56fe\u4e0a\u8ddd\u79bb\u662f\u5b9e\u9645\u8ddd\u79bb\u7684\u591a\u5c11\uff0c\u5b9e\u9645\u8ddd\u79bb\u662f\u56fe\u4e0a\u8ddd\u79bb\u7684\u51e0\u500d\uff0c\u56fe\u4e0a1\u5398\u7c73\u4ee3\u8868\u5b9e\u9645\u8bf4\u660e\uff1a\u56fe\u4e0a\u9762\u7684\u5355\u4f4d\u662f\u6beb\u7c73\u7ea7\u522b\u7684\u30021\uff1a20000\u8bf4\u660e\u56fe\u4e0a\u8ddd\u79bb1\u6beb\u7c73\u8868\u793a\u5b9e\u9645\u8ddd\u79bb20000\u6beb\u7c73 \u56fe\u4e0a\u8ddd\u79bb\u4e00\u7c73\u8868\u793a\u5b9e\u9645\u8ddd\u79bb20000\u7c73\uff0c\u3002\u6211\u4eec\u5b9e\u9645\u4e2d\u5e38\u7528\u7684\u3002\u4e00\u822c1\uff1b500 1\uff1b1000 1\uff1b2000 1\uff1b5000 1\uff1b10000
\u53ea\u6709\u56fd\u5bb6\u5730\u7406\u554a\u6216\u8005\u67d0\u4e2a\u533a\u57df\u65b9\u9762\u4ec0\u4e48\u7684\u624d\u7528\u90a3\u4e48\u5c0f\u7684\u6bd4\u4f8b\u5c3a\u3002
\u4e24\u5730\u95f4\u7684\u5b9e\u9645\u8ddd\u79bb=20000*3.2cm=64000cm=640m
比例尺为1:20000 就是说1cm 实际是20000cm所以2cm实际距离为20000×2cm=40000cm=400m
2cm * 20000 = 400 m
绛旓細1:20000姣斾緥灏虹殑鍚箟鏄紝鍦板浘涓婄殑1鍘樼背浠ｈ〃瀹為檯璺濈鐨200绫銆傝繖鎰忓懗鐫鍦板浘涓婄殑璺濈鏄疄闄呰窛绂荤殑1/20000銆傛瘮渚嬪昂鐨勬暟鍊艰秺澶э紝琛ㄧず鍦板浘鐨勭粏鑺傝秺涓板瘜锛屼絾瑕嗙洊鐨勮寖鍥磋秺灏忥紱鑰屾瘮渚嬪昂鐨勬暟鍊艰秺灏忥紝琛ㄧず鍦板浘鐨勮寖鍥磋秺骞匡紝浣嗙粏鑺傜浉瀵硅緝灏戙傝繖涓瘮渚嬪昂鐨勪俊鎭潵婧愬彲浠ュ湪鍦板浘涓婃壘鍒帮紝閫氬父浼氬湪鍦板浘鐨勫浘渚嬫垨璇存槑閮ㄥ垎杩...
绛旓細姣斾緥灏轰负1:20000 灏辨槸璇1cm 瀹為檯鏄20000cm 鎵浠2cm瀹為檯璺濈涓20000脳2cm=40000cm=400m
绛旓細1锛20000=n锛600000 n=30 鍦板浘涓婃槸30鍒嗙背銆
绛旓細姣斾緥灏烘槸1:2涓囷紝瀹為檯璺濈鏄300绫鐨勮瘽锛鍥句笂鐨勮窛绂诲氨鏄15鍘樼背
绛旓細涓骞呭湴鍥剧殑姣斾緥灏烘槸1锛20000锛岃鏄庡浘涓婅窛绂绘槸瀹為檯璺濈鐨 1 20000 锛鍥句笂1鍘樼背鐨勮窛绂昏〃绀虹殑瀹為檯璺濈鏄2000鍘樼背锛屽洜涓20000鍘樼背=200绫筹紝鎵浠ュ浘涓1鍘樼背鐨勮窛绂昏〃绀虹殑瀹為檯璺濈鏄200绫筹紱鏁呯瓟妗堜负锛 1 20000 锛200锛
绛旓細鍦ㄤ竴骞呮瘮渚嬪昂鏄1姣20000鐨勫湴鍥句笂,2鍘樼背琛ㄧず瀹為檯鐨400绫,8鍗冪背鍦ㄥ浘绾镐笂搴旂敾40鍘樼背銆傚疄闄呴暱搴︿负鍥句腑闀垮害鐨20000鍊嶏紝璁＄畻鏃舵敞鎰忓崟浣嶇粺涓銆
绛旓細瑙ｏ紝鍥涓婅窛绂伙細瀹為檯璺濈=姣斾緥灏 瀹為檯璺濈=鍥句笂璺濈梅姣斾緥灏 =2.5脳20000 =50000鍘樼背 =500绫 瀹為檯璺濈鏄500绫炽
绛旓細瑙ｏ細鍦板浘姣斾緥灏=鍥句笂璺濈锛氬疄闄呰窛绂 鏈涓凡鐭ュ浘涓婅窛绂=1.5鍘樼背锛屽湴鍥炬瘮渚嬪昂=1锛20000 瀹為檯璺濈=1.5脳20000=30000鍘樼背 =300绫 绛旓細瀹為檯璺濈鏄300绫炽
绛旓細姹傜敳涔欎袱鍦扮殑瀹為檯璺濈锛1锛20000锛12锛歑 X锛240000鍘樼背 鍙︿竴鍦板浘锛岀敳涔欎袱鍦拌窛绂婚暱3鍘樼背:3/240000=1:80000
绛旓細涓骞鍦板浘鐨勬瘮渚嬪昂鏄1:20000,琛ㄧず鍥涓婅窛绂绘槸瀹為檯璺濈鐨勩1/20000銆 ,瀹為檯璺濈鏄浘涓婅窛绂荤殑銆20000鍊嶃
