If a Denotes the Area of the Sector of a Circle

question 206

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.
- $$\theta = \frac { \pi } { 4 } \text { radians, } \mathrm { A } = 50 \text { square meters, } \mathrm { r } = \text { ? }$$

• A) 11.29 m
• B) 4.43 m
• C) 19.63 m
• D) 78.5 m

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