Nguyên văn bởi viet7720
---------------- REGIONS ----------------
Area: 6.0000
Perimeter: 10.0000
Bounding box: X: 1565.5035 -- 1567.5035
Y: 657.1008 -- 660.1008
Centroid: X: 1566.5035
Y: 658.6008
Moments of inertia: X: 2602534.9691
Y: 14723602.1273
Product of inertia: XY: 6190203.3849
Radii of gyration: X: 658.6014
Y: 1566.5037
Principal moments and X-Y directions about centroid:
I: 4.5000 along [1.0000 0.0000]
J: 2.0000 along [0.0000 1.0000]

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