1.一个圆柱的底面周长6.28cm,这个圆柱的表面积是多少平方厘米?2.在地图100000m的距离,在平面图上只画10cm,所用的比例尺是多少?3.一个圆锥底面周长6.28,高9cm,它的体积是多少?
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![1.一个圆柱的底面周长6.28cm,这个圆柱的表面积是多少平方厘米?2.在地图100000m的距离,在平面图上只画10cm,所用的比例尺是多少?3.一个圆锥底面周长6.28,高9cm,它的体积是多少?](/uploads/image/z/11668386-66-6.jpg?t=1.%E4%B8%80%E4%B8%AA%E5%9C%86%E6%9F%B1%E7%9A%84%E5%BA%95%E9%9D%A2%E5%91%A8%E9%95%BF6.28cm%2C%E8%BF%99%E4%B8%AA%E5%9C%86%E6%9F%B1%E7%9A%84%E8%A1%A8%E9%9D%A2%E7%A7%AF%E6%98%AF%E5%A4%9A%E5%B0%91%E5%B9%B3%E6%96%B9%E5%8E%98%E7%B1%B3%3F2.%E5%9C%A8%E5%9C%B0%E5%9B%BE100000m%E7%9A%84%E8%B7%9D%E7%A6%BB%2C%E5%9C%A8%E5%B9%B3%E9%9D%A2%E5%9B%BE%E4%B8%8A%E5%8F%AA%E7%94%BB10cm%2C%E6%89%80%E7%94%A8%E7%9A%84%E6%AF%94%E4%BE%8B%E5%B0%BA%E6%98%AF%E5%A4%9A%E5%B0%91%3F3.%E4%B8%80%E4%B8%AA%E5%9C%86%E9%94%A5%E5%BA%95%E9%9D%A2%E5%91%A8%E9%95%BF6.28%2C%E9%AB%989cm%2C%E5%AE%83%E7%9A%84%E4%BD%93%E7%A7%AF%E6%98%AF%E5%A4%9A%E5%B0%91%3F)
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