The formula to calculate the area of a circle is A = πr^2, where A is the area and r is the radius of the circle.
The diameter of the sundial is given as 90 feet, so the radius would be half of that, which is 45 feet.
Using the formula, we can calculate the area of the circular base as follows:
A = π(45^2)
A = π(2025)
A ≈ 6362.39 ft^2
The measurement closest to the area of the circular base of the sundial is therefore 6,358.5 ft^2.
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?
282.6 ft2
3,627.5 ft2
141.3 ft2
6,358.5 ft2
1 answer