Question

the radius of the base is 4 inches and its height is 6 inches what is the surface area of the cylinder in terms of pi

Answer 1

Answer is 80pi
Step by step

To find lateral_area = (2 * π * r) * h

Since it’s in term of pi,
(2 x radius x height) pi
2 x 4 x 6 = 48pi

base_area = 2 * π * r²
Since it’s in terms of pi
(2 x r^2)
(2 x 4^2)
= 32pi

Total surface area in terms of pi = 32+48
= 80pi