There is a pile of conical sand in the cement plant. The perimeter of the bottom is 62.8 meters and the height is 4 meters. The weight of each cubic meter of sand is 1.5 tons. How many tons does this ton of sand weigh

There is a pile of conical sand in the cement plant. The perimeter of the bottom is 62.8 meters and the height is 4 meters. The weight of each cubic meter of sand is 1.5 tons. How many tons does this ton of sand weigh

3.14×(62.8÷3.14÷2)²×4÷3×1.5
=3.14×100×4÷3×1.5
=3.14×400×0.5
=628 tons
A: This ton of sand weighs 628 tons
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