Asked by nitishkrnehu09 | 10th Dec, 2017, 11:06: PM

Expert Answer:

begin mathsize 16px style straight r subscript 1 equals 20 space cm
straight h subscript 1 equals 10 space cm
straight r subscript 2 equals 15 space cm

total space volume space is space
volume space of space hemisphere plus 2 space frustums
2 over 3 πr subscript 1 cubed plus 1 third straight pi open parentheses straight r subscript 1 squared plus straight r subscript 2 squared plus straight r subscript 1 straight r subscript 2 close parentheses cross times straight h subscript 1 cross times 2
subtract space
volume space of space cylinder space straight pi straight r squared straight h space
straight h equals ? space comma space straight r equals 12
now space imagine space straight a space chord space of space lenght space 24
perpendicular space from space centre space will space bisect
straight a space rt increment space is space formed
so space perpendicular space distance space is space 16
so space total space straight h equals 36
ans space is space left parenthesis straight A right parenthesis end style

Answered by Arun | 12th Dec, 2017, 04:40: PM