Question

5. The total surface area of a cylinder whose radius is 1/3 of its height is?


​

Answer 1

Answer:

let

hieght = h

ATQ

radius = h/3

then h = 3radius

TSA of cylinder = 2πr(r+h)

= 2πr(r + 3r)

= 2πr(4r)

= 2π(4r²)

= 8πr²

hope this will help you

Answer 2

Answer: suppose height is X

Then radius=x\3

Total surface area=2*π*x\3*X+2*π*(x\3)^2