Final answer:
The arc length of a semicircle can be found using the formula: arc length = (pi * diameter) / 2.
Step-by-step explanation:
The arc length of a semicircle can be found using the formula:
arc length = (pi * diameter) / 2
In a semicircle, the diameter is twice the length of the radius. So, if the radius of the semicircle is 8 units, the diameter would be 2 * 8 = 16 units.
Substituting the values in the formula, we get:
arc length = (pi * 16) / 2 = 8pi units