Respuesta :

Answer:

126x - 42x²

Step-by-step explanation:

Finding the necessary information

  • P = Perimeter = 6(6 - 2x) = 36 - 12x
  • a = 7x

Area

  • 1/2 x (36 - 12x) x 7x
  • (18 - 6x) x 7x
  • 126x - 42x²
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