What is the total surface area of a closed cylinder of height 10cm and diameter 7cm? [Take (pi = frac{22}{7})]

A.
77cm^{2} 
B.
227cm^{2} 
C.
297cm^{2} 
D.
374cm^{2}
Correct Answer: Option C
Explanation
T.S.A of s closed cylinder = (2pi r(r+h)\
=frac{2}{1}times frac{22}{7} times frac{7}{2}left(frac{7}{2}+frac{10}{1}right)=frac{22}{1}left(frac{27}{2}right)=27time 11=297cm^2)