Find the total area of the surface of a solid cylinder whose base radius is 4cm and height is 5cm
A
56\(\pi\) cm2
B
72\(\pi\) cm2
C
96\(\pi\) cm2
D
192\(\pi\) cm2
Verified Correct Answer: B.
Step-by-Step Mathematical Solution
The total surface area of a cylinder = \(2\pi r (r + h)\)
= \(2 \pi (4) (4 + 5)\)
= \(8 \pi (9) = 72 \pi cm^{2}\)
Source: Myschool Past Questions Archive (Record #31424)