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An observatory is shaped like a cylinder standing on one of its bases with a dome on top. The diameter of the floor of the observatory is 64 feet, as shown in the diagram.
Which measurement is closest to the circumference of the base of the observatory in feet?
200.96 ft
3,215.36 ft
100.48 ft
401.92 ft
The circumference of a circle can be calculated using the formula C = πd, where d is the diameter of the circle.
Given that the diameter of the floor of the observatory is 64 feet, we can calculate the circumference of the base as follows:
C = π x 64 = 200.96 ft
Therefore, the measurement closest to the circumference of the base of the observatory in feet is 200.96 ft.