Answer:
26.6
Explanation:
There are two half circles (which together form a full circle) with a diameter of 4 and a radius of 2, the arclength of the circle is 2*π*r = 2*π*2 = 4π, the length of the two straight line segments is 2*7 = 14
The total perimeter is 14 + 4π ≈ 26.6