c.math
posted by new florance internationa boarding school on .
the total surface area of a cylinderical can, whose height is equal to the radius of the base is 2646 cm, find its volume.

2πr^2 + 2πrh = 2646
Now, we know that h=r, so that means
4πr^2 = 2646
r^2 = 2646/4π =
The volume v is
v = πr^2 h = πr^3 = π(2646/4π)^3/2 = 27783 √(3/8π)