Question

find TSA of cylinder volume 3080cubecm and height is 20 cm

Answer 1

Answer:

Step-by-step explanation:

The volume of a cylinder = πr^2*h

Where r is radius of the base of cylinder and h is the height

So π*r^2*h=3080

Or, 22/7*r^2*20=3080

Or, r^2=7*7

Or, r=7.

So the radius of the base of cylinder is 7cm

Now the total surface area is given by-->

2*π*r^2+2*π*r*h sq.cm.

2* (22/7)*(49)+2*(22/7)*(7)*(20)sq.cm

=1188sq.cm