Given radii of top circular ends r1 = 20cm
Radii of bottom circular end of bucket r2 = 12cm
Let height of bucket be ‘h’
Volume of frustum cone
Given capacity
volume of bucket = 12308.8 cm3 .......(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