Question

fine the surface area of the cylinder in terms of pi
a. 216 pi in.^2
b. 144 pi in.^2
c. 432 pi in.^2
d.168 pi in.^2

Answer 1

The only answer that makes any sense is for the cylinder wall alone, no endcaps included.

The formula for the area of a cylinder wall is:

\[2 \pi rh\]

Expressing that in terms of pi would be:

\[\pi * 2rh\]

So the value of 2rh is what your answer would be.