Find the height of a cylinder, which is open at the top, having a given surface area, greatest volume and of radius r.
A. r
B. 2r
C. \(\frac { r }{ 2 }\)
D. \(\frac { 3\pi r }{ 2 }\)
Answer:A
Find the height of a cylinder, which is open at the top, having a given surface area, greatest volume and of radius r.
A. r B. 2r C. \(\frac { r }{ 2 }\) D. \(\frac { 3\pi r }{ 2 }\)