Respuesta :

Answer:

19.42 ft

Step-by-step explanation:

Triangular part = 5+5 =10

Semi-circular part = 1/2×2πr = 1/2×2×3.14×3 = 9.42

Perimeter = 10+9.42 = 19.42ft

For semicircular

Outer perimeter

  • πr
  • 3.14(3)
  • 9.42

Now

Total perimeter

  • 5+5+9.42
  • 18.42ft

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