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64 = 2 ( 2x + 3 + x + 3)
64 = 2 ( 3x +6)
64 = 6x + 12
64 -12 =6x
46 =6x
52/6 =x
8,66 = x
pajang = 2(8,66) + 3
= 17,32
= 20,32 cm
64 = 2 ( 2x + 3 + x + 3 )
64 = 2 ( 3x + 6 )
64 = 6x + 12
6x + 12 = 64
6x= 64 - 12
6x = 52
x = 8,66
P = 2x + 3
= 2 ( 8,66 ) + 3
= 17,32 + 3
= 20,32cm