Question

the ratio of height and radius of a cylinder is 4:3.its volume is equal to the volume of a sphere which has radius of 6cm.what is the surface area of the cylinder?​

Answer 1

Step-by-step explanation:

let the height and radius of a cylinder are h and r

then h:r=4:3

h/r=4/3

h=4r/3

πr^2.h=4/3π6^3

r^2.4r/3=4/3 6^3

r^3=6^3

r=6

h=4.6/3=8

surface area of the cylinder is 2πr.hcucm

2.(22/7).6.8cucm

=301.71cucm