Question

the volume of a cylinder having height one and half of the radius is 12936 cube cm.what minimum square cm of paper is needed to cover the CSA of cylinder​

Answer 1

Answer:

answer to this question is 2π rh

Answer 2

Answer:

1848

Step-by-step explanation:

I know it's a little late and you don't need it anymore but the steps are as follows

volume = 12936

height = 1.5 * radius (given in question, one and half = 1.5)

now,

volume = 22/7 * r² * h

or, 12936 = 22/7 * r * r * 1.5*r (height = 1.5 * radius)

or, 12936 * 7/22*1.5 = r³

or, r = ³√ 2744

or r = 14

so, height = 21

C.S.A = 2 * 22/7 * r * h

         = 1848 cm²