Final answer:
The area of a circle with a radius of 38 cm is approximately 4523.89 cm².
Step-by-step explanation:
The formula for finding the area of a circle is A = πr², where A is the area and r is the radius. To find the area of a circle with a radius of 38 cm, we can substitute the value of the radius into the formula.
A = π(38 cm)² = 3.1415927...(38 cm)² = 1444π cm² ≈ 4523.8934 cm². Rounding to two decimal places, the area is approximately 4523.89 cm². Therefore, the correct option is a) 8322.13 cm².