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german
3 years ago
12

Cone, diameter of base 18 ft slant height 14 ft

Mathematics
1 answer:
marissa [1.9K]3 years ago
7 0

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

<h3>A = πrl+πr²</h3>

<em>here l = slant height</em>

<em>         r = radius of the base</em>

<em />

plug values in the formula

A = π(9)(14)+π9²

A = 207π ft²

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