It is known that the diameter of the cylinder is 1.28 meters, the height is 1.75 meters, and the gram weight per square meter is 75 grams?
(1.28÷2)^2×3.14×1.75×75
=0.64^2×3.14×1.75×75
=0.4096×3.14×1.75×75
=168.8064g
A: the weight of the cylinder is 168.8064g
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