Answer:
[tex]550.44m^2[/tex]
Step-by-step explanation:
You need both formulas to solve for area on a cone
[tex]A=\pi rl+\pi r^2\\l=\sqrt{r^2+h^2}[/tex]
[tex]A=\pi r(r+\sqrt{h^2+r^2})\\ =\pi *6.4*(6.4+\sqrt{17^2+6.4^2})\\ 493.90cm^2[/tex](cone)
[tex]A=2\pi r^2\\=2\pi 3^2\\=56.54m^2[/tex](hemisphre)
[tex]493.90+56.54=550.44m^2[/tex]
