Answer:
36.84 ft
Step-by-step explanation:
The perimeter is the sum of all the sides of a figure.
The lengths of the straight lines on either side of the semicircles can be added together to get this:
3 + 3 + 3 + 3 + 3 + 3 = 18 ft
Now, to find the length of the semi-circles, we can use the formula for a circe's circumference, which is C = 2πr.
Since our radius is 3, we can substitute r = 3 into the formula.
C = 2π3 = 6π ≈ 6(3.14) = 18.84 ft
Add this 18.84 from the circle to the 18 from the rectangle, and you'll end up with 36.84 ft.
