问题
解答题
一台压路机滚筒长1.2米，直径1米，这台压路机的滚筒滚动200周前进了多少米？压过的路面是多少平方米？
答案
（1）3.14×1×200=628（米）；
（2）3.14×1×1.2×200，
=3.14×240，
=753.6（平方米），
答：这台压路机的滚筒滚动200周前进了628米；压过的路面是753.6平方米．
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一台压路机滚筒长1.2米，直径1米，这台压路机的滚筒滚动200周前进了多少米？压过的路面是多少平方米？
（1）3.14×1×200=628（米）；
（2）3.14×1×1.2×200，
=3.14×240，
=753.6（平方米），
答：这台压路机的滚筒滚动200周前进了628米；压过的路面是753.6平方米．
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