Respuesta :

Answer:

B

Step-by-step explanation:

Area of semicircle=(r^2×3.14)/2

=(4×3.14)÷2

=6.28

area of rectangle=3×4

12+6.28=18.28

perimeter of semicircle is =(d×3.14)/2

=4×3.14/2

6.28+3+3+4

6+10

perimeter=16.28

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