Step-by-step explanation:
Perimetre = 2(6x + 9) + 2(4x - 1)
;l multiplied by 2 on each and every length because there are 2 sides of equal length
; Then we simplify the brackets
; Perimetres = 12x + 18 + 8x - 2
; Perimetre = 20x + 16
Answer: I think it is 364.80
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