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(2 1)(1) = (3)
(3 6)(1) (9)
bayangan titik B
(2 1)(1) = (6)
(3 6)(4) (27)
bayangan titik C
(2 1)(5) = (14)
(3 6)(4) (39)
bayangan titik D
(2 1)(5) = (11)
(3 6)(1) (21)
membentuk jajargenjang dg luas (11-3)(39-21) = 8 x 18 = 144