Question

a closed metallic cylindrical box 1.5 m high and it has a base whose radius is 21cm .if the sheet of the metal cost repees 75 per sq .m , find the cost of the material used in the box , also find the capacity of the box​

Answer 1

TSA of cylinder = 2 * pi *r (r+h)

= 2*22/7*21(21+1.5)

=132(21+1.5)

=132(22.5)

2970

cost =2970*75

222750

hope it will help you!!!