maths
posted by emily .
a worker dig a ditch with perpendicular sides.It is 1.05m wide at the top and at the bottom. If it is 1.80m deep and 21.6m long.How many cubic metres of earth are removed?[give your answer to 1 decimal place.]

1.05x1.80x21.6=40.824
40.8 cubic meters of earth removed
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