You can put this solution on YOUR website! area of rectangle 3m wide 2m deep about an axis parallel to the longer edge and 5m from it show only diagram
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Area = 3*2 = 6 sq meters
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If you meant the volume:
Use the Theorem of Pappus.
The centroid is the 1 meter from the long edge --> a radius of 6 meter.
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Vol = 2pi*area*r = 72pi cubic meters