Cylinder 82991

Please express r from the formula for the surface of the cylinder.

Correct answer:

r = fr(1,2) (sqrt(fr(2 S,π) + v^2) - v)

Step-by-step explanation:

S = 2πr(r+v) S = 2 π r2 + 2 π r v  2 π r2 + 2 π r v  S = 0 s = 2 π b = 2 π v c = S  r12 =  2ab ±b24ac  r>0  r=21(π2 S+v2v)



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