Question

the radius and height of a cylinder are in the ratio 7:3.If the volume of the cylinder is 12474cm cube,find the curved surface area and total surface area of the cylinder.​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:1188,3960

Step-by-step explanation:

radius:height = 7:3

let the radius be 7x

let the height be 3x

volume of a cylinder = πr²h

so 22/7 × 7x × 7x × 3x

= 22 × 7x² × 3x

= 462 x³

A.T.P.

462x³ = 12474

x³ = 27

x = 3

7x  = 21

3x = 9

curved surface area = 2πrh

= 1188 cm³

total surface area = CSA+ area of 2 circles

= 1188+ 2πr²

1188+2772

= 3960

bro/sis hope it helps you.