<span>You did not include the equations that you want to assess whether they can be used to solve for the radius (r).
Likely, the equation of the circumference, C = 2*Pi*r is included, if so => r = C / (2*Pi).
If you round Pi to 3.14, the equation may be written r = C / 6.28.</span>
No solution for the quadratic equation because of the √-20
One that could be close is Letter B?
Answer:
16.97
Step-by-step explanation:
Therefore b= 16.97