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将一个长50厘米,宽40厘米,高35厘米的工具箱表面涂上油漆,需涂油漆的面积是多少
将一个长50厘米,宽40厘米,高35厘米的工具箱表面涂上油漆,需涂油漆的面积是多少
发布时间:2020-08-17 02:44:58
口算题卡 齐鲁书社义务教育教科书最新配套用书 978-7-5333-2783-5
网友回答
s=2*(50*40+50*35+40*35)=2*(2000+1750+1400)=2*5150=10300cm2
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