Respuesta :

Answer:

B.    l = (S - πr^2) / πr

Step-by-step explanation:

S = πrl + πr^2 solve for l

πrl = S - πr^2

  l = (S - πr^2) / πr

Answer is B.    l = (S - πr^2) / πr

Solve for L (get L by itself)

S = πrl + πr²    First subtract πr²

S - πr² = πrl    Then divide πr to get L by itself

(S-πr²) ÷ (πr) = l    Your answer is B