The volume of the right circular cylinder is 308 cm^3 and its height is 8cm. Find

( i) the radius (ii) the area of its curved surface. 

Asked by Cl_narayan | 31st Aug, 2019, 04:47: PM

Expert Answer:

Volume space of space cylinder space equals space 308 space straight m cubed
πr squared straight h equals 308
22 over 7 cross times straight r squared cross times 8 equals 308
straight r equals 7 over 2 straight m
curved space SA space equals space 2 πrh equals 2 cross times fraction numerator 7 cross times 22 over denominator 2 cross times 7 end fraction cross times 8 equals 176 space sq. straight m

Answered by Arun | 31st Aug, 2019, 05:23: PM