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Answer :

[tex]\large \mathfrak{Solution : }[/tex]

1. For Rectangle F :

perimeter = 2 (length + width)

  • 2 (5x + 4)

  • 10x + 8

2. For Rectangle G :

perimeter = 2 (length + width)

  • 2 (x + 8 + 3x)

  • 2 (4x + 8)

  • 8x + 16