Answer:
207π ft²
Step-by-step explanation:
Given in the question,
diameter of the base = 18 ft
slant height= 14 ft
radius of the base = 18/2
= 9 ft
Formula to calculate the surface area
A = πrl+πr²
here l = slant height
r = radius of the base
plug values in the formula
A = π(9)(14)+π9²
A = 207π ft²
