Option C:
Surface area of the given cylinder = 433 ft²
Solution:
Diameter of the base = 6 ft
Radius of the base = 6 ÷ 2 = 3 ft
Height of the cylinder = 20 ft
To find the surface area of the cylinder:
Surface area of the cylinder = [tex]2 \pi r^{2}+2 \pi r h[/tex]
[tex]=2 \times3.14\times3^2+2\times3.14 \times3 \times20[/tex]
[tex]=56.52+376.8[/tex]
[tex]=433.32[/tex]
= 433 ft²
Surface area of the given cylinder = 433 ft²
Hence Option C is the correct answer.
