Answer:
the radius of the smaller windmill is approximately 60 feet (option D).
Explanation:
The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius.
For the larger windmill:
C = 660 feet
2πr = 660
r = 330/π
r ≈ 105.1 feet
For the smaller windmill:
C = 376 feet
2πr = 376
r = 188/π
r ≈ 59.8 feet
Therefore, the radius of the smaller windmill is approximately 60 feet (option D).