Answer:
A, good luck!!!
Explanation:
The area of a circle can be calculated using the formula A = πr^2, where r is the radius of the circle. The radius is half the diameter, so for a circle with a diameter of 90 feet, the radius would be 45 feet.
Substituting this value into the formula for the area of a circle gives A = π * 45^2 = 2025π ≈ 6361.725 square feet.
Of the two options given, A: 3,627.5 ft2 is closest to the calculated area of the circular base of the sundial.