Answer:
33.3
Step-by-step explanation:
The straight line parts adds to [tex]9+9+6=24[/tex]. Then it's the half circle. A whole circle of radius 3 would have a length of [tex]2\pi\cdot3,[/tex] but we're only using half of it, so we divide it by 2. The whole shape has a perimeter of[tex]24 + 3\pi \approx 24+9.3 = 33.3[/tex]
Errata corrige: I used the diameter instead of the radius
