Given:
The diameter of circular surface is 8ft and height 9 ft.
Required:
What is the lateral area of the cone?
Explanation:
We know formula for lateral area of cone
[tex]A_L=\pi r\sqrt{h^2+r^2}[/tex]
We have diameter of circular surface is 8 cm. So radius is half of it that is 4.
Now,
[tex]\begin{gathered} A_L=3.14\times4\times\sqrt{9^2+4^2} \\ A_L\approx123.7017 \end{gathered}[/tex]
Answer:
Hence, answered the question.
