Math, asked by Mohitgupta6410, 11 months ago

Ratio of area of curve linear surface and total surface of a right circular cylinder is 1:2.If total surface area of right circular cylinder is 616 squre cm,then what will be its volume?

Answers

Answered by VedJaripatke
0

Answer:

25 is the correct answer

Answered by xcristianox
6

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

                           

                             ⇒ = πr³=1078cm³

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