Respuesta :

sqdancefan
Area of lid = (area of rectangle) + (area of semicircle)
  = (45 cm)*(22 cm) + (1/2)*(π*(13 cm)²)
  = 990 cm² + 265.46 cm²
  = 1255.46 cm²

The area of the lid is about 1255.5 cm².

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good job