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y1 = 4 y2 = 1
L.1 = 2 x 8 L.2 = 4 x 2
= 16 = 8
xo = (x1 . A1 + x2 .A2) / (A1 + A2)
= (1 . 16 + 4 . 8) / 16 + 8)
= (16 + 32) / 24
= 48/24
= 2
yo = (y1 .A1 + y2 .A2) / (A1 + A2)
= (4 . 16 + 1 . 8) / (16 + 8)
= (64 + 8) / 24
= 72 / 24
= 3
koordinat titik berat ( 2 , 3)
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