Final answer:
The area of the circular region with a radius of 10 meters is found using the formula A = πr², yielding an area of 100π square meters.
Step-by-step explanation:
The question involves finding the area of a circular region with a given radius. To find the area, we use the formula A = πr², where A is the area and r is the radius of the circle. Given that the radius is 10 meters, we substitute this value into the formula to get A = π(10 m)².
Carrying out the calculation, we get A = π(100 m²) or A = 100π m². Therefore, the correct answer to the question is (a) 100π square meters.