Given:
Given that a cone with
[tex]\begin{gathered} r=7.2m \\ l=17m \end{gathered}[/tex]
Required:
To find the surface area of the given figure.
Explanation:
The formula for surface area of cone is
[tex]SA=\pi r^2+\pi rl[/tex]
Where r = radius
l = length.
Now,
[tex]\begin{gathered} SA=\pi(7.2)^2+\pi\times7.2\times17 \\ =51.84\pi+122.4\pi \\ =174.24\pi \\ =547.1136m^2 \end{gathered}[/tex]
Final Answer:
The surface area of the given figure is 547.11 square meter.
