一根方木,底面是边长2cm的正方形,木料长2.4m,如果每立方米木头重0.5吨,50根这的方木共重多少吨?
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一根方木,底面是边长2cm的正方形,木料长2.4m,如果每立方米木头重0.5吨,50根这的方木共重多少吨?
一根方木,底面是边长2cm的正方形,木料长2.4m,如果每立方米木头重0.5吨,50根这的方木共重多少吨?
一根方木,底面是边长2cm的正方形,木料长2.4m,如果每立方米木头重0.5吨,50根这的方木共重多少吨?
V=0.02x0.02x2.4=0.00096立方米
一根重0.00096x0.5=0.00048t
50根重0.024t
2*2.4*0.5*50=120
2cm=0.02m
0.02*0.02*2.4=0.00096m³
0.00096*0.5*50=0.024吨
一楼和三楼对。也可以这样做:0.5×(2.4× 0.02 × 0.02 ×50)=0.024
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