【题目】读图回答下列问题.
(1)此图的比例尺是用式表示的.请你用另外一种形式表示此比例尺 .
(2)厦门位于台北的方向.
(3)如果用图中比例尺画你学校的平面图,合适吗?为什么?
(4)图中高雄到厦门的图上距离为3厘米,两地实际直线距离大约为千米.
【答案】
(1)线段;1:10000000
(2)西南
(3)
不合适;因为学校范围小,应选择大比例尺
(4)300
【解析】比例尺是表示图上距离比实地距离缩小的程度,用公式表示为:比例尺= .比例尺的可以用以下方式来表示:数字式、文字式、线段式.(1)读图可知,图中的比例尺是用线段式表示的,用文字式表示为:图上1厘米代表实地距离100千米,用数字式表示为:1:10000000.(2)在有经纬网的地图上,用经纬网定向,纬线指示东西方向,经线指示南北方向,据此读图可知,厦门位于台北的西南方向.(3)如果用图中比例尺画你学校的平面图不合适;因为学校范围小,应选择大比例尺.(4)图中的比例尺是线段式,表示图上1厘米代表实地距离100千米,若厦门到高雄的直线距离是3厘米,则两地实际距离是300千米.所以答案是:(1)线段;1:10000000;(2)西南;(3)不合适;因为学校范围小,应选择大比例尺;(4)300.
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