在比例尺是1:20000的图纸上量得甲乙两地相距15厘米,那么在另一张比例尺是1:30000的图纸上,这两地间的 数学六年级下册填空题三道
\u5982\u679c\u5728\u6bd4\u4f8b\u5c3a1\uff1a20000\u7684\u56fe\u7eb8\u4e0a\u91cf\u5f97\u7532\u3001\u4e59\u4e24\u5730\u76f8\u8ddd15cm\uff0c\u90a3\u4e48\u5728\u53e6\u4e00\u5f20\u6bd4\u4f8b\u5c3a\u662f1\uff1a30000\u7684\u56fe\u7eb8\u4e0a\uff0c1\uff1a20000\u7684\u56fe\u7eb8\u4e0a\u91cf\u5f97\u7532\u3001\u4e59\u4e24\u5730\u76f8\u8ddd15cm\uff0c\u5b9e\u9645\u662f300000\u5398\u7c73
\u5728\u53e6\u4e00\u5f20\u6bd4\u4f8b\u5c3a\u662f1\uff1a30000\u7684\u56fe\u7eb8\u4e0a\uff0c\u56fe\u4e0a\u8ddd\u79bb\u56e0\u8be5\u662f300000\u00f730000\uff1d10\u5398\u7c73
\u4e00\u4e2a\u5706\u67f1\u7684\u4f53\u79ef\u6bd4\u4e0e\u5b83\u7b49\u5e95\u7b49\u9ad8\u7684\u5706\u9525\u7684\u4f53\u79ef\u592740cm³\uff0c\u5706\u9525\u7684\u4f53\u79ef\u662f\uff0820\uff09cm³
\u7f29\u5c0f\u6bd4\u4f8b\u5c3a\u4e00\u822c\u8981\u6c42\u6bd4\u7684\uff08\u524d\uff09\u9879\u8981\u5316\u7b80\u4e3a1\uff0c\u800c\u653e\u5927\u6bd4\u4f8b\u5c3a\u5e94\u8be5\u4f7f\u6bd4\u4f8b\u5c3a\u7684\uff08\u540e\uff09\u9879\u4e3a1
\u5728\u6bd4\u4f8b\u5c3a\u662f1:20000\u7684\u56fe\u7eb8\u4e0a\uff0c\u91cf\u5f97\u7532\u4e59\u4e24\u5730\u76f8\u8ddd15\u5398\u7c73\uff0c\u90a3\u4e48\u5728\u53e6\u4e00\u5f20\u6bd4\u4f8b\u5c3a\u4e3a1:30000\u7684\u56fe\u7eb8\u4e0a\uff0c\u8fd9\u4e24\u5730\u7684\u8ddd\u79bb\u662f\uff0810\uff09cm
\u5982\u679c\u4f60\u8ba4\u53ef\u6211\u7684\u56de\u7b54\uff0c
\u8bf7\u53ca\u65f6\u70b9\u51fb\u3010\u91c7\u7eb3\u4e3a\u6ee1\u610f\u56de\u7b54\u3011\u6309\u94ae\uff0c\uff08\u6216\u5728\u5ba2\u6237\u7aef\u53f3\u4e0a\u89d2\u8bc4\u4ef7\u70b9\u3010\u6ee1\u610f\u3011\uff09
\u4f60\u7684\u91c7\u7eb3\uff0c
\u662f\u6211\u524d\u8fdb\u7684\u52a8\u529b! \u4f60\u7684\u91c7\u7eb3\u4e5f\u4f1a\u7ed9\u4f60\u5e26\u53bb\u8d22\u5bcc\u503c\u7684\u3002
\u5982\u6709\u4e0d\u660e\u767d\uff0c
\u53ef\u4ee5\u8ffd\u95ee\uff0c\u76f4\u5230\u5b8c\u6210\u5f04\u61c2\u6b64\u9898!
15÷
300000×
答:这两地间的图上距离应是10厘米. 故答案为:10. |
绛旓細2.8鍘樼背*20000=560绫 560/2锛5+2锛=40 闀匡細5*40=200绫 瀹斤細2*40=80绫 鎿嶅満闈㈢Н=200*80=16000骞虫柟绫
绛旓細鍦ㄦ瘮渚嬪昂鏄1:20000鐨勫浘绾涓婇噺寰楃敳銆佷箼涓ゅ湴鐩歌窛15鍘樼背,閭d箞鍦ㄥ彟涓寮犳瘮渚嬪昂鏄1:30000鐨勫浘绾镐笂,杩欎袱鍦扮殑璺濈搴旀槸( )鍘樼背?鍒嗕韩鍒: 2013-08-26 12:55 鎻愰棶鑰呴噰绾 搴旂敾=20000脳15梅30000=10鍘樼背 涓嶆噦鍙拷闂,鏈夊府鍔╄閲囩撼,璋㈣阿! 杩介棶 涓轰粈涔堣繖涔堝啓鍛?甯汉甯埌搴,閫佷經閫佸埌瑗 璇勮 | 鍏富鏈湯1987 | 鏉ヨ嚜...
绛旓細8梅 1 20000 =160000锛堝帢绫筹級=1.6锛堝崈绫筹級锛涚瓟锛氫袱鍦扮殑瀹為檯璺濈鏄1.6鍗冪背锛屾晠閫夛細C锛
绛旓細鍦ㄤ竴骞呮瘮渚嬪昂鏄1姣20000鐨鍦板浘涓,2鍘樼背琛ㄧず瀹為檯鐨400绫,8鍗冪背鍦鍥剧焊涓婂簲鐢40鍘樼背銆傚疄闄呴暱搴︿负鍥句腑闀垮害鐨20000鍊嶏紝璁$畻鏃舵敞鎰忓崟浣嶇粺涓銆
绛旓細姣斾緥灏鏄〃绀哄浘涓婅窛绂绘瘮瀹炲湴璺濈缂╁皬鐨勭▼搴︺傜敤鍏紡琛ㄧず涓猴細姣斾緥灏=鍥句笂璺濈/瀹炲湴璺濈銆傛瘮渚嬪昂涓猴細1锛20000.16鍘樼背=0.16绫 鍗冲疄闄呰窛绂=0.16*20000=3200绫炽傛牴鎹綘缁欑殑宸茬煡鏉′欢鍙兘姹傚嚭杩欎箞澶氥傞鐩病缁欏畬銆傚凡鐭ョ敳涔欐潯浠朵笉鍏呭垎銆
绛旓細閲忕殑涓鍧楀湴闀5cm锛屽3.5cm,鎵浠ュ疄闄呴暱搴︿负5脳20000梅100=1000绫 瀹藉害涓3.5脳20000梅100=700绫 鎵浠ュ疄闄呴潰绉负1000脳700=700000骞虫柟绫
绛旓細10
绛旓細姣斾緥鏄1锛20000锛屼竴鍘樼背浠h〃20000鍘樼背锛屾墍浠ワ紝瀹2鍘樼背锛屽嵆瀹芥槸40000鍘樼背锛屽嵆鏄400绫筹紝鍚岀悊闀挎槸600绫筹紝闈㈢НS=闀夸箻瀹斤紝鍗筹紝400涔600=240000骞虫柟绫炽
绛旓細鎮ㄥソ锛4梅1/20000梅100=800(绫筹級濡傛灉瀵逛綘鏈夊府鍔╋紝璇烽噰绾筹紒绁濅綘瀛︿範鏇翠笂涓灞傛ゼ锛屾暟瀛﹁緟瀵煎洟涓轰綘瑙e喅鐤戦棶锛
绛旓細鍙互閫氳繃鍒楀紡杩涜璁$畻 1锛20000=8cm : Xcm 锛姣斾緥灏烘槸涓涓瘮渚嬶紝娌℃湁鍗曚綅锛屼絾鏄疄闄呰窛绂讳綘鏈夊崟浣嶏紝娉ㄦ剰鍗曚綅瑕佺粺涓锛岋級璁$畻鍑篨=8cm脳20000=160000cm=1600m