Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

The total surface area of a solid cylinder is 616 square cm. If the ratio between its curved surface area and total surface area is 1:2; find the volume of

the cylinder.
sorry samharsh bro 4 making u wait
but i dont get the answer


let  radius =r cm and height=h cm
We have curved surface area= 2π*r*h
we have the circular surface  area= 2πr²
ATQ        2πr(h+r)= 616      ---(1)
         and  2*2πrh= 2πrh+ 2πr²
                 ⇒      h=r
Substituting value of h in (1)
                  we have 4πr²=616
                               ⇒   r²=59
                               ⇒   r=7
Volume of the cylinder is πr².h=πr³= π7³=1078cm³
0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts