What is the total surface area of a closed cylinder of he...
What is the total surface area of a closed cylinder of height 10cm and diameter 7cm? [Take π=227]
77cm2
227cm2
297cm2
374cm2
Correct answer is C
T.S.A of s closed cylinder = 2πr(r+h)=21×227×72(72+101)=221(272)=27×11=297cm2