Given radii of top circular ends r_{1} = 20cm

Radii of bottom circular end of bucket r_{2} = 12cm

Let height of bucket be ‘h’

Volume of frustum cone

Given capacity

volume of bucket = 12308.8 cm^{3} .......(2)

Equating (1) and (2)

Height of bucket (h) = 15cm

Let ‘l’ be slant height of bucket

Length of bucket 'or' slant height of Bucket (l) = 17cm

Curved surface area of bucket