Question 243425
please help me with this. an irrigation canal is 10 kilometers long and 2 meters deep. it is 4 meters wide at the top and 2 meters wide at the bottom. how many cubic meters of earth were excavated to make the canal? thanks
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The cross-sectional area is 2*(4+2)/2 sq m, = 6 sq meters
The volume is the area time the length
Vol = 6*10000 = 60000 cubic meters