The formula to calculate the area of a circle is:
Area = π * r^2
Given that the diameter of the base is 90 feet, the radius (r) is half of that, so r = 45 feet.
Using this value, we can calculate the area of the circular base:
Area = π * 45^2
Area = π * 2025
Area ≈ 6,358.5 ft2
Therefore, the measurement closest to the area of the circular base of the sundial in square feet is 6,358.5 ft2.
A sundial has a circular base with a diameter of 90 feet as shown in the diagram.
90 feet. N. E. S. W.
Which measurement is the closest to the area of the circular base of the sundial in square feet?
6,358.5 ft2
282.6 ft2
3,627.5 ft2
141.3 ft2
1 answer