Question

the height of a cylinder is 4.5m and the volume is 144pai cubic m. find the radius and surface area of this cylinder​

Answer 1

Answer:

..................

...

mm

Answer 2

Answer:

let the radius be `r

given

height= 4.5m

volume=144π

Now,

2πr(h+r) =144π

= r(h+r) = 144π/2π

= r(4.5+r)=72

= 2r = 72-4.5

=2r = 67.5

= r = 67.5/2

= r = 33.75

therefore, radius = 33.75