Question 383435
The lateral area of a cone is about 226.2 square meters. If the slant height of the cone is 12 meters, what is the surface area to the nearest tenth.

Lateral area = pi*radius * slant height
226.2=pi*r*12
226.2/12*pi=r
r= 59.22 meters
..
Total area = lateral area + surface area of base
Area of base = pi*r^2
=pi*(59.22)^2
=11,017.6 m^2
Add up both the areas to get total surface area.
226.2+11,017
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