Final answer:
The area of the semicircle is 190.681 square centimeters.
Step-by-step explanation:
To find the area of a semicircle, you can use the formula A = πr²/2, where A is the area and r is the radius. Given that the radius is 11 cm, we can substitute this value into the formula:
A = (3.142)(11²)/2
Simplifying the expression:
A = (3.142)(121)/2
A = 381.362/2
A = 190.681 cm²
Therefore, the area of the semicircle is 190.681 square centimeters.