Question

The total surface area of the cylindrical iron pillar
surmounted by a cone of radius and height equal to
that of the cylinder (r = 6 cm, h= 8 cm) is​

Answer 1

Step-by-step explanation:

Given the radius of cylindrical pillar is 6 cm and height

Then slant height =

(6)

2

+(8)

2

=

64+36

=

100

=10 cm

Then total surface area of pillar =2πr(r+l)=2π×6(6+10)=192π sq cm