find the diameter of a cylinder whose height is 5cm and volume is equal to its curved surface area
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radius = r cm
height = h= 5cm
volume of the cylinder = csa of the cylinder
πr²h = 2πrh
r²/r = 2πh/πh
r = 2
diameter = d= 2r
d= 2*2
d= 4 cm
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