The diameter of a cylinder is equal to its height. If the height of the cylinder is 14 cm, find the total surface area of the cylinder.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e 924 cm2.
r = d/2 = 14/2 = 7 cm
A = 2πr(r + h)
⇒ A = 2 × 22/7 × 7(7 + 14)
⇒ A = 44 × 21 = 924 cm2