Respuesta :

mhanifa

Answer:

  • 461.81 cm²

Step-by-step explanation:

  • Diameter of a big circle is 28 cm
  • Diameter of smaller half-circles is 28/2 = 14 cm

Shaded area = Area of big circle - area of small circle as two half-circles add up to small circle

Area formula:

  • A = πd²/4

Shaded area

  • π*28²/4 - π*14²/4 = 461.81 cm²

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