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What is the surface area of this cone?

Use 3.14 and round your answer to the nearest hundredth.

What is the surface area of this cone? Use 3.14 and round your answer to the nearest-example-1
User Hatim
by
7.5k points

1 Answer

6 votes

Answer:

Area=3992.87

Explanation:

Using formulas

Given Diameter d=38

so Radius is d/2 ; r=d/2=38/2=19

r=19

Area=
\pirl+
\pi
r^2


l=√(r^2+h^2)


l=√(44^2+19^2) \\l=√(2297)\\ l=47.9270


A=(3.14)(19)(√(2297))+(3.14)(19)^2 \\A=3992.86648\\

Rounding to the nearest hundred is 3992.87

User Danioyuan
by
8.9k points

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