Question

a cylindrical vessel open at the top has a radius 10 centimetre and height 14 cm find the total surface area of the vessels take piare = 3.14

Answer 1

Area = 2πrh + πr²

A = 2*3.14*10*14 + 3.14*10^2

A = 1193.2 cm²

Answer 2

r=10
height=14
surface area of bottom lid
=3.14×r^2
=3.14×10×10
=314cm2
lateral surface area=lxh
l=perimeter of lid
=2×3.14×r
=2×3.14×10
=62.8
laterall surface area =62.8×14
=879.2cm2
total surface area=314+879.2
=1193.2cm2