Answer: 520.5 m²
This answer is not an answer choice provided, but I hope this still helps.
Step-by-step explanation:
The formula to find the surface area of a cone is [tex]A=\pi r(r+\sqrt{h^2+r^2} )[/tex]. Looking at the formula, we can see there are radius and height. The figure provided gives the radius is 7.1 m and height of 14.6 m. Since we have these values, we can just plug them into the formula.
[tex]A=\pi (7.1)(7.1+\sqrt{14.6^2+7.1^2} )[/tex]
Now that we have filled out the formula, we can plug this into a calculator to get the surface area. It is possible to do this by hand, but it is hard to be accurate.
[tex]A=520.5m^2[/tex]
