Find the total surface area (in cm2) of a right circular cylinder of diameter 7 cm and height 6 cm.
Answer & explanation
Correct answer: option 1
T.S.A. of cylinder = 2\(\pi \)r (r + h)
= 2 × \(\frac{22}{7}\) × \(\frac{7}{2}\) (\(\frac{7}{2}\) + 6)
= 22 × \(\frac{19}{2}\)
= 209 cm2