If a Denotes the Area of the Sector of a Circle

Multiple Choice

If A denotes the area of the sector of a circle of radius r formed by the central angle θ, find the missing quantity. If
necessary, round the answer to two decimal places.
- $\mathrm { r } = 9$ feet, $\mathrm { A } = 39$ square feet, $\theta =$ ?

A) $0.48$ radians
B) 3,159 radians
C) $0.96$ radians
D) $1,579.5$ radians