For this case we have that by definition, the surface area of a cone is given by:
[tex]SA = \pi * r * s + \pi * r ^ 2[/tex]
Where:
A: It's the radio
s: It's the slant
Substituting according to the data we have:
[tex]SA = \pi * 2.1 * 5.6 + \pi * (2.1) ^ 2\\SA = 36.9264 + 13.8474\\SA = 50.7738 \ m ^ 2[/tex]
If we round:
[tex]SA = 50.8 \ m ^ 2[/tex]
Answer:
True
