SOLUTION: A cone of maximum size is carved out from a cube of edge 20 cm. find the surface area of solid

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Question 1018991: A cone of maximum size is carved out from a cube of edge 20 cm. find the surface area of solid
Answer by FrankM(1040) About Me  (Show Source):
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The radius of the circular base is 10 cm. This gives a base area of
%28100pi%29
The height is 20cm for a slant height (triangle hypotenuse) of
10%28sqrt%285%29%29
Area of top section is
%28pi%29%28r%29%28slant%29
%28pi%29%2810%29%2810%28sqrt%285%29%29%29
or
%28100%28sqrt%285%29%29%28pi%29%29
for a total
%28100%28sqrt%285%29%29%28pi%29%29+%28100pi%29

1016.64 sq cm