Respuesta :

Answer:370.08cm

Step-by-step explanation:

Diameter=144

Radius=diameter ➗ 2

Radius=144 ➗ 2

Radius =72

Perimeter of semicircle=π x Radius + diameter

Perimeter of semicircle=3.14 x 72 + 144

Perimeter of semicircle=370.08cm