K = 2(AB + DC)
130 = 2(27 + DC)
130/2 = 27 + DC
65 = 27 + DC
DC = 65 - 27
DC = 38 cm
opsi d
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K = 2(AB + DC)
130 = 2(27 + DC)
130/2 = 27 + DC
65 = 27 + DC
DC = 65 - 27
DC = 38 cm
opsi d