Respuesta :

mhanifa

Answer:

  • 34.28 ft

Step-by-step explanation:

Find the length of semicircle

  • C = πd, circumference of circle
  • C/2 = πd/2 = 3.14*4/2 = 6.28 ft

Find the perimeter

  • P = 4 + 6.28 + 2*12 = 34.28 ft

For rectangle

  • L=12
  • B=4

Perimeter:-

  • 2(L+B)
  • 2(12+4)
  • 2(16)
  • 32ft

For semicircle:-

  • radius=r=4/2=2ft

Perimeter:-

  • πr
  • 2π
  • 6.28ft

Total:-

  • 6.28+32-4
  • 38.28-4
  • 34.28ft

Otras preguntas