Question

The volume of a cylinder of height 4 cm is
196 cm^3. Find its lateral surface area and its
total surface area.
​

Answer 1

Answer:

Its lateral surface area will be 99.26cm²

A=2πrh

V=πr2h

Solving forAL

AL=2hπV

h=2·4·π·196

4≈99.25742cm²

And total surface area will be

A=2πrh+2πr2

V=πr2h

Solving forA

A=2hπV

h+2V

h=2·4·π·196

4+2·196

4≈197.25742cm²