Solve the problem.The radius r of a circle of known area A is given by r = , where  Find the radius and circumference of a circle with an area of 48.71 sq ft. (Round results to two decimal places.)

A. r = 15.52 ft, C = 97.52 ft
B. r = 3.94 ft, C = 8.86 ft
C. r = 3.94 ft, C = 24.76 sq ft
D. r = 3.94 ft, C = 24.76 ft


Answer: D

Mathematics

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