Answer:
I guess The last option 21 and one- Third teaspoons
24/r= 36/27
Cross multiply:
36*r= 24*27
⇒ r= 24*27/36= 18
r=18~
w/0.16 = 6.25
⇒ w= 6.25*0.16
⇒ w= 1
w=1~
Given that,
Radius of the circle, r = 8.91 cm
Angle, 
To find,
The area of minor sector.
Solution,
The formula for the area of minor sector is given by the formula as follows :

So, the area of the shaded sector is
.
Answer: Can you make the question a bit clear?
I tried to do it and didn’t get any answer choice you provided, but to find the radius of a circle using circumference you take the circumference and divide it by 2 times pie. Which would be 185 or 183/6.28
Hoped this helped you sorry