If A denotes the area of the sector of a circle of radius r formed by the central angle ?, find the missing quantity. If necessary, round the answer to two decimal places.? =  radians, A = 99 square meters, r = ?

A. 155.43 m
B. 38.86 m
C. 6.23 m
D. 15.88 m


Answer: D

Mathematics

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