Final answer:
The perimeter of a semicircle with a radius of 8 inches, rounded to the nearest tenth, is approximately 50.3 inches.
Step-by-step explanation:
To find the perimeter of a semicircle, you need to add the length of the straight part, which is the diameter, to half the circumference of the semicircle. The formula for the circumference of a circle is C = 2πr, where r is the radius. Since we have a semicircle, we need to only use half of the circumference, so the formula becomes C/2 = πr. Plugging in the given radius of 8 inches, we get C/2 = π(8) = 16π inches. Rounding this to the nearest tenth, we get a perimeter of approximately 50.3 inches, which corresponds to answer option C.