Respuesta :
Answer: 283 cm2
Step-by-step explanation:
The formula for finding the surface area of a cone is:
A=[tex]\pi r(r+\sqrt{h2+r2})[/tex] Where r is the radius and h is the height.
Replacing: [tex]\pi 5(5+\sqrt{(12)2+(5)2}[/tex]
Solving: 282,7 ≈ 283cm2