Answer:

Step-by-step explanation:
Radius = r = 9 cm
Angle = θ = 200° = 3.5 radians
Now,

Area = 1/2 (9)²(3.5)
Area = 1/2 (81)(3.5)
Area = 282.7 / 2
Area of sector = 141.4 cm²
15.1 feet, is the answer to your question. Enjoy!
Answer:
take the reciprocal of the initial value "a"
Step-by-step explanation:
From my past learning my teacher have taught me this.
If incorrect let me know
Hope this helps