関連ワード:  what is a scale on a map used for    what is the scale on a map used for class 6    what is a small scale map used for    what is a large scale map used for    what is a medium scale map used for    what is a map scale used for geography    what is a scale bar used for on a map    what do we use a scale on a map for    what is a line scale used for on a map    describe what a scale is used for on a map